Ask anybody about interior design, and the first thought always drifts to the color palette that will have to go on the floors, the walls, ceilings, and the rest of the room's furniture. Traditionally, the decorations and the room accents are put off as an afterthought.
This, in particular, happens to wall art. You deal with it last, don't you? Long after the last coat of paint dries and after the furniture's been set up and arranged.