The way I figure...it's just paint, and you can always paint over it if you don't like it!
In my last home, I did this really complicated geometric mural in really BRIGHT colors in a tiny powder room. Well, it turned out that it was just TOO bold and crazy a design for that small space. Whenever me or Tony went in there, we just got a headache! So I knew I needed to paint over it, which I did, eventually (a pale, buttery yellow, with some tiny little daisies painted free-hand)
So all that to say - I spent days working on that geometric thing, and ended up not liking it at all, so I just re-painted it...no problem!