Our bathroom has charcoal grey tiles in the walk in shower along with above sink and along the windowsills. The rest of the room is painted white and the floor is a cheap pale grey vinyl - we were decisioned out after a full house refurb!
The room feels cold and needs more character so looking at artwork and we've added plants and greenery but the only other obvious thing is to think about is other accessories like towels. When we first did the work, we had mustard bath mat and hand towels (white others).
My dad has just redone his bathroom in pale grey with mustard accessories and knowing his typical decor style, I can't help but worry we've now got something very unfashionable 
Considered painting the walls another colour but couldn't picture what would work best. We went white initially as we knocked toilet and bathroom together and the ceiling height wasn't exactly lined up so when re-plastered it looks a bit wavy which isn't great.
So, what colour towels would you go for? Any other tips to "warm up" the room?