This is very beautiful, I'm really enjoying the color scheme and the overall composition.
You never cease to appeal me with all the gorgeous scenes you create :3.
Though, there are some techincal issues that I'd love to see improved, for example, I think the outlines are too
monotonous, my guess is that you're vectoring with the stroke path function, right? For things like the piano and
the piano bench works fine, but for Allen and the doves...I'm not that sure.
Also, I think the floating stuff in the sky shouldn't be that neat, since they're not the focal point of the
wall, some blurring would create a sense of distance. And maybe making the piano's shadow softer would be a nice
touch too.
I really hope you make more DGM walls 8), it definitely needs more love.