It's cute! I like your tiles.

First, I'd change the light (which is already your plan to do)

Second, I'd let the two brown bathmats go, and choose a different bathmat. Either more-rug looking, or more towel-looking(which you can dry on the edge of the tub when not using it)-depending on your preference. I see benefits in both-a more "real" rug, say, a wool one, makes a bathroom look more like a real room-cozier. A towel-like one can be easily washed and is very convenient.

Third, I'd go for more substantial shower curtain. The choice is amazing these days. If you like nautical motives(like in your towel that gave me a clue, maybe a wrong one))-Thomas Paul makes great ones. They have a theme, but don't look cheap or too kitschy. They are expensive, but you can get one on E Bay for less. Or this one-I bought it as a gift, so I know it's good quality..it also has more green in it which will pick up the color of your tiles. A bit childish maybe, and not everyone's cup of tea but invigorating, cute, and full of details:

http://www.ebay.com/itm/Danica-Studio-Shower-Curtain-Odyssey-72-x-72-/222092141366?hash=item33b5b92336:g:6-4AAOSwubRXFs7p

And If you like solids, geometry, florals, digital images, tiers, literally everything-you can find it all in shower curtains, and at any price point. I prefer the fabric ones, they elevate the space so much, but then in most cases you'll need a liner.

Then when you put it all together-the new light, the bathmat, the shower curtain you like-you'll see whether you want to change a wall color or not, and if yes-to what.

As a space saver-you can put an over the door towel rack/hooks for additional towels, you know these- they are everywhere too.

Is that a medicine cabinet? If you haven't checked already, you might make sure that light fixture doesn't hang so low that the cabinet door will hit it.

This might be a little too dark for you space, but ties in the green.

http://www.pbteen.com/products/colorblock-shower-curtain-navy-green-2014/?pkey=cshower-curtains%7Cview-all-shower-curtains&&cshower-curtains|view-all-shower-curtains

@aprilneverends - thanks for the tips! Those lavender bath mats were all I've put in there so far just so that there would be something (they were left overs from the spare bath we had in our previous condo). I agree with you on the fabric shower curtains - I much prefer that look, and there's already a liner on there now so I'll be on the lookout for a nice looking one. It's only my fiance and I living in the house, so the shower in this bathroom is rarely used - maybe 3 times since we moved (and one of those times was to bathe the dog ;-) ).

@benjesbride - yes that is a medicine cabinet and that thought didn't even cross my mind! I'll have to measure to make sure it will work - thanks!

@torreykm - I do like that curtain, but yes, I'm concerned it might be too dark, especially since the only natural light in the bathroom comes from a window with privacy glass that is on the shower wall behind the curtain.

I'm thinking I might use some yellow, or some navy blue - but do you think that navy would look awkward with the dark green tiles? Or if I did a lighter green, would it look out of place? These are a couple of shower curtains that I found and liked (the first one in the green, and navy/slate blue)

http://www.amazon.com/InterDesign-Leaves-Fabric-Shower-Curtain/dp/B016W1NWCI?ie=UTF8&ref_=zg_bs_13749881_86

http://www.amazon.com/InterDesign-Chevron-Fabric-Curtain-72-Inch/dp/B00SY39PMO?ie=UTF8&ref_=zg_bs_13749881_83

http://www.amazon.com/InterDesign-Mildew-Free-Water-Repellent-Curtain-72-Inch/dp/B00ZPVIC4A?ie=UTF8&ref_=zg_bs_13749881_36

Navy would never look awkward with green-imagine some northern coast, with green pines, and dark water..

It's a very natural combination

A bit preppy, maybe, because people love it for a long time and use in uniforms etc. But that's already our modern connotation

Analogous schemes tend to look great..like blue and green.

Light green should work too. Green is a special color-all shades of green will always work together for us. Because that's what we grow with-all shades of green around))

All of your choices have a potential to work. I usually dislike chevron-but I liked it here..the fading effect.

If you pick navy or blue for a curtain-you can add a little green elsewhere-something like a soap dish, in a different shade of green, to a bring slight variation to the overall scheme while still keeping it very simple.

I guess I didn't think about the natural occurrence of those colors...which will also go with the dark wood of the vanity :)

I think I'm going to incorporate navy primarily in the curtain and maybe towels, and then some green accents here and there. I really appreciate your input! Now I can't wait to put it all together!

No, it won't be too much. I think it will be cool. It also has this transparency and depth about it. And I love how the pattern of the curtain is reflected in the mirror now..Pretty!

(The dog is adorable)

Love it all!

Thanks for your input - I'm so excited this mismatched room is finally coming together! I'll post some more pictures once I finish it.

Amazing how a few small changes can completely change the feel of the room, awesome job! Cute dog too ;)

I thought I'd give you guys an update of the finished product - swapped out the light fixture and put the green knobs on the medicine cabinet/over toilet cabinets. I opted to keep the nickel knobs on the vanity since the green didn't contrast on the dark wood. I'm very pleased with how it's all turned out - thank you all for your inspiration!