Here are my thoughts and opinions - take it all with a grain of salt:
#1) I love the overall feel of the shot, but the tree reflection and the green grafitti are distracting - perhaps walking a few more steps to the left to get more perspective would help.
#2) Love the shot - wish the wall was longer so it didn't end on the last third of the frame
#3) Really like the dark mood of this shot - great job!
It's easy to be a critique when you are not dealing with everything else you didn't see.