I would not want to walk through a bath to get to the closet. Otherwise I think it looks good.

Here is your second floor rotated for easier viewing.

IMO without meaurements we can read on all spaces this will be hard to answer. Furniture place,ment will be impossible with the FP where it is , the walkways in the kitchen look too narrow I really dislike 2nd floor laundry since that involves running up and down all the time to deal with laundry when a main floor onwe where you spend most of the time makes more sense. You do not show where you want a DR so is the BR going to be the DR. Never access a closet through the bathroom and honestly I need the masurements to be readable especially for the kitchen and the master bath.

Upstairs, I would leave the bedrooms with the reach-in closets. Same amount of storage as wallk-in and leaves more space in the bedroom.

But I wonder if you would consider moving the master closet across from the vanity? It makes more sense. I don’t think you are likely to step out of the shower and into the closet without stopping off at the vanity first. You might even consider moving the closet door to the bedroom, but that is a matter of personal preference.

In the living room, lay out your furniture to scale, in the way you would actually use the room. It seems a bit awkward. OTOH, the fireplace location makes an effective divider from the tv-watching area at the back from the ”library” or puzzle-doing area by the stairs. How do you plan to use the entire great room space?

- In your Great Room, lay out some furniture. You will find that it will be very difficult to accomplish a cozy seating area with the fireplace stuck down in the skinny section of the Great Room, so that furniture does not interfere with the main aisle from the front door, and in back also allows access to the Lanai doors. The fireplace should slide towards the Lanai, and either keep just the 1 Lanai door in the Breakfast, or put only 1 Lanai door in no-man's land (between Kitchen island and Great Room seating) and the Breakfast and Great Room have just windows.

- Upstairs I see 10' ceilings. That might be pretty tall in small rooms that make them feel out of proportion. In addition, I do not see transom windows called out, so having a really tall wall above windows will contribute to the sense of out-of-proportion for the high ceilings. Also the 1990's called and said they are sorry for keeping bathrooms open to the Master Bedrooms.

- Is there any sort of backhouse entry? Like from a garage or street?

Which space in a house generates the most moisture into the air?

Which space in a house do you most not want moist air in?

Ive walked through many models with the closets off of the bathroom. Im not sold on the idea that its the worst tragedy in home building. Proper ventilation, air conditioning and if needed, maybe have a bathroom fan installed in there attached to the main bathroom fan to expell any humidity from the shower. Keep the closet door shut. I wouldnt do split closets, I would do a custom well thought out single closet if it has to fit enough for two. I think that if youre ok with the closet attached to the bathroom thats what matters. I have never seen anyone post a floorplan on this site where everybody says ”PERFECT!” dont change a thing. Everybody is a critic and i guess thats what you wanted. In the end, you have to like it.

What will be your normal entrance to the house? With the garage behind, will you usually enter through the patio doors?

not sold on the idea that its the worst tragedy in home building

Compared to the toilet in the kitchen--or is that kitchen in the toilet?-- no big deal at all!

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I once bought the more common toilet access from the kitchen model. (Which shows up here from time to time too.) Really convenient!

I might want a door (but not double doors) to the bathroom.

Compared to a lot of floor plans posted here on Houzz, this one is not too bad. There is a question on how it fits on the site, and what the orientation/sun exposure is. It's also hard to read the measurements, so some areas could be a problem. Lastly, we have no idea of what the exterior looks like.

What I like about it:

• Lots of windows; most rooms have windows on two walls
• Closets/utility rooms not on corners
• Generally good-sized rooms
• Good flow/layout
• Separate room for commode (as long as it is large enough)
• Nice sightline from the front door without revealing the entire first floor right as you enter
• Reach-in closets are fine for bedrooms 2 and 3 upstairs

What I think needs improvement:

• Larger dining area--the breakfast room looks to be quite small for more than 4 people
• Front door-double doors are not very practical--usually you use only one. I would replace it with one door and sidelights
• The walk-in closet in the master seems to be very large and have wasted space in the center. I'd rework that entire bath/closet area. However, I agree with M Riz about the moisture issue in the closet. If you have good ventilation, it shouldn't be a problem. But that's a big IF. I have Fantech fan/lights in my master bath and I never have any condensation or humidity in the room, or in the adjacent closet. The separate room for the commode could be moved to the area below the shower, so it could have a window.
• In the kitchen, I'd move the sink to where the range is, so it has a window. Then I'd place the range on the wall perpendicular to the sink wall, and keep the island as a work surface only.
• As has been stated, the seating area around the fireplace will be a problem. If you center the seating on the f/p wall, it could be cramped and will leave you with a no-man's land between the island and the french doors to the back.
• Definitely install a door from the master bedroom to the bath.

In the kitchen, the refrigerator should have a few inches to both sides, so that the doors can open past 90°: You want to be able to pull the bin drawers out.

And, be sure the lower cabinet doors on the range wall call full open by the refrigerator, too, including with the knobs or pulls. I put a slightly different, shorter, knob on the doors perpendicular to the dishwasher so that each could open when the other was closed. Fortunately, exactly one person besides me has noticed in 18 years, and it was not someone who lives in this house lol!

I see that there are beds sketched in the bedrooms. You need to do the same in the Great Room, which is not looking so great to me -- looks like ones we see as Design Dilemmas (how do I furnish this??) all the time.

I have a closet off our bathroom and had the same in our previous house. Cumulatively around 20 years and have had zero issues with moisture. Now, this is only one point so do your due diligence, but I wanted to mention it as so many people point to it as a negative. That and the infamous gas chamber toilet room works very well for the way we live.

If the closet and toilet were swapped, the toilet could have a high window for natural light, so you don’t have to turn the light on EVERY time you want to just replace the toilet paper.

What goes where the orange circle is? Whatever it is will have a view directly into the bathroom, so hopefully it's not a space for a dining table. And in any case, many people find it awkward to enter/exit a bathroom in full view of everyone else.

If the study is ever used as a bedroom, where will you put a bed? In front of the windows? (And if it's not intended for use as a bedroom, then you can consider eliminating the shower from that downstairs bathroom.) Also the closet in that room probably won't work well as a WIC; hanging clothes take up about 22-24" perpendicular from the wall, so check your measurements. For sure hanging clothes won't turn a corner very well.

ETA: how narrow are those windows in the kitchen? What will they look like when trimmed out, on exterior and interior?

The study/bedroom has two sets of double doors. That leaves little wall space for furniture, no matter how you try to use that room. I would eliminate both sets to make it a functional room. As many have mentioned, the fireplace is in a terrible location for furniture arrangement. DH dearly loved a feature he wanted for our new build until I used my famous painter’s tape on the floor of our garage to draw the floor plan of the family room. It was obvious the space couldn’t fit what he wanted. I did the same thing with our kitchen remodel in this house. Once the space was delineated, it was obvious the hoped-for island size couldn’t work. If you try to lay out the great room space and try to fit furniture around the fireplace, you will be so disappointed. But you will save yourself heartbreak when you move into your home. The woman who bought my previous house had her heart set on a sectional. I knew as soon as she said it that it wouldn’t work, but I just held the dumb end of the tape measure she brought with her.

The great room looks huge but impractical for furniture layout. Where would the tv go? Where is the dining table going?

As for the kitchen, again, lots of space, but the sink and range are crowded back to back. Fridge will not be able to open. There is no pantry or storage for brooms, etc.

Where will you enter the home? You mentioned a garage, but it isn’t shown. Will you normally use front door or lanai entrance? Neither provide much landing zone areas.