Yes Alan, wall art is the new name, for things you hang on the wall to decorate your home (or garden).
Not to be confused with real high art; I don't think a Vermeer is classed as wall art. A bit like costume jewellery v. the real stuff, I suppose.
I assume bathroom here, means bathroom, rather than just the lavatory? (You English still regularly confuse me.)
How steamy is your bathroom Chris? And I mean it literally. Mine is fully tiled, and gets quite steamed up after a prolonged hot shower, even with the window open.
Even if yours does not get visibly 'steamy,' there will be moisture, so you'll have to make sure you get something that can withstand that. Unless you don't mind replacing them on a regular basis. (In which case cost comes into it, but you can also use different images, to create a continuously changing exhibition.)
I'm not sure this type of soft focused sepia images, will look good in 'weather proof' (laminated/block print/aluminium print) versions.
These should last longer, but would they do the subject justice? I think they might look harsh.