I would pull out the grey blue from your floor tile. Then for accent colour you can do it in your towels, shower curtain and rug etc.

I agree. You might consider using dark shade for drama (with extra mirrors or a picture with a huge white matt). It would feel smaller but interesting at the same time. Keep shower curtain light - like the tile.

Well, there you go. I feel the walls should be kept the pink/peach color of the tiles ( assuming the wall you keep will be visible, and not behind the shower curtain) to make the room feel as spacious as possible. White trim and grey blue accessories will bring all your colours together in proper proportion.

Thanks all, these are all great ideas, I will play with the colors tonight.

How about the second bathroom in the unit? That's the one that I can "experiment" with and use interesting fun colors. It's a very small place with forest green tile on the floors (pictures attached)

Tiny bathrooms are great candidates for wallpapering:

Go big or go home I say - if you have the blue in the flooring already, do a dramatic blue wall with big mirrors on.

Youzza, Houzza!!

be careful of the grey you pick--go lighter in the shade than you actually like--small room will feel dark if the color is too bold--looks great initially and then you tire of it (trust me, been there done that ;)--and I agree (earlier post, not the one about dark blue walls!), accent with the towels and shower curtain, etc.--this way if you tire of the towel color you can change it up easily, rather than re-painting.