Very, very beautiful work. The tree is sticking out a little to me though, I think the more detailed, rough texture of the bark is clashing a little with the smooth and simplistic aesthetic of the rest of the piece.
wow this looks beautiful. amazing detail on the buildings (:
Wonderful colors. But why didn't you dither the sky? It looks striped.
Very beautiful! I like windows and the wall texture a lot 
Very nice and attractive. I only think the tree trunk to canopy sizes are off. With the canopy as is then the trunk should be much thinner for a better read.
nice work.
the reason the tree stands out as mentioned is because there is no shadow from the leaves being cast on the trunk/branches more than the texture.