I would love to see this with white windows and a neutral colour and perhaps in different strengths to get the variation....so under the windows, 1/4 strength and the vertical walls half strength and then full strength on the design work on the top with the inside of the pattern 1/4 strength of the paint colour. Then you could if you want paint wall extending out full strength and then the wall with the doorway 1/2 strength again. So, what I am saying is ...use the same colour but vary it by the strength of the colour and I think it will look great.. Neutrals don't date...paint it something bright and it will look great for the moment but how long is a moment...not long....hope this helps...