You don't have to be a masterful muralist to appreciate the lift that art can bring to your loo. It's true that prints and paintings can suffer from the steam, but we've seen some great moisture-proof solutions, including mobiles, small sculptures or collectibles, vinyl wall decals, and yes, wall murals.
Pink lotus! Yea!
Tons of it: 3 small oil paintings over the towel rack; 1 large-scaled framed photograph next to the toilet; one medium-scaled framed photograph above it; another medium-scaleed photograph next to the vanity; and one small framed photograph on the entry wall. I shower with 2 ceiling exhaust fans going and the bathroom door open.
I guess you could call it art...I consider my Marimekko shower curtain art. Otherwise, I wouldn't put anything I cared about in the bathroom because I'm afraid it would warp in the steam.
I have never really worried about our bathroom gettig steamy enough to hurt any of my art. That said, I rotate things in and out based on random whims and have yet to see any damage on anything. And we run the fan while showering to keep the steam down.
The bathroom--the last undecorated frontier in even the smallest apartment! We love encaustics--wax paintings--for the bathroom: they are usually fine with the humidity, with isn't always the case for works on paper. We carry a really fun line of small encaustics by Brian Behnke in our gallery: they all deal with phobias (Fear of Garlic, Fear of Cold Things, Fear of Lakes) and are witty enough to hold their own.