I love that original tile and would want to go back with something similar on the floor, and probably a simple standard subway or 4x4 in the shower and on the walls. Then put an interesting paint color or even wallpaper on the top part of the walls. Unfortunately, the room is so small you don't have many options for layout. Maybe hang an antique mirror from a chain over the existing window so it will be above the vanity. Not exactly the same as what I am talking about but you get the general idea:

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yes, very hard to do much with the window placement -- too bad it's not next to the toilet! I can't picture the cabinet and mirror as they are, but mybe you could put something on an arm from the corner by the shower, so that you can pull it over when you want both light and vision?

as for tile, in a small space you want to keep most of it simple. however, you can do a fun floor without overwhelming the space, and/or a single accent tile in the shower. here's what I did with the tiniest bath I've renovated:

white fixtures and side wall tile, a tiny bit of fun on the floor, and a coordinating gray accent tile on the back wall, just to give a tight space some fun and personality.

bonus question: would this room be better as a powder room, or is the full bath needed? with a half bath, you could move the sink where the shower is now, get a bigger vanity with some storage, maybe a mirrored medicine cabinet, the works! :))

I don’t have any really specific advice, but I wanted to say 1) I love the original tile, and 2) I think a tiny bathroom is absolutely the place to go bold. We’re (hopefully) converting in an itty bitty closet into a half bath, so I’ve been stalking Pinterest for similar projects and I’m seeing a lot with really rich, dark paint or wall paper and bright light marble or porcelain and feel like it can make a small space feel really rich.

Great to have the feedback, thank you!! Just one note, the tile in there is not original, it was put in by the previous owner in the 70s. Hence why I’m ok taking it out.

I have definitely thought about making it one level but it’s hooked directly into the original cast iron toilet drain pipe. The reason why it steps up is to reach that, so I fear the expense of fixing that would double the overall project cost.

I’m researching the mirror over the window piece but still uncertain how I’ll like it. Maybe if we could enlarge the window slightly I could get more on board.

I have found some great tiles though.

I LOVE dark moody bathrooms @s.Allen so the compromise I’m narrowing in on is a dark green accent tile and black grout on the floor to give some pop to a marble sheet tile.

We are trying for storage so we can get rid of some of the strange shelving/cabinet combos and found this floating vanity.

I also found a bi-fold shower door that will help with spacing! We just are hoping we can find the right size.

I’m loving the idea of gold hardware to try to get more Art Deco vibes.

Full pictures of the tiles in action

That green is beautiful— love it! And I think it will look so great with gold hardware!