The framing is awkward with the tree right in the middle of the frame. The background is also very distracting. Colors and focus look good, just watch your composition. Read about the rule of thirds, it'll be very helpful.
I think the composition is rather interesting, the building moves my eye from left to right, and ends up on the people. I might crop it in a little, to get rid of the extra space on the left. Now I agree that it is over sat'd, and I think its taking away from the already vivid outfits the people have, so I would tone that down quite a bit.