I think a little effort in the image composition phase might help. What bothers me, but not necessarily you or anyone else:
1) background: garbage behind legs, right hand and forearm resting on the molding/shadow of the garage framing, white swath of roofing goining straight through his head with the shawdow matching his neck line shadow almost looking like his head is separate from body. A little look at the background relative to your subject goes a long way.
2) lighting: harsh daylight but looks decent without obvious modifier/supplemental lighting and presumed PP of his face. Based on the shadow of the tree, Im guessing big shady areas are lacking where you live. Modifying the light with reflectors/diffusers or adding fill light for the shadows will also help. The black shirt is harder to work with, especially in the bright sun.
3) PP: I am not a fan of the rotation you did. To me it is the wrong way, which may have been your intent. He is aimed towards his left and his right hand makes it seem like he is holding onto something, i.e. the action is going to his left, but you cropped/shot it in a manner which is pulling our eyes to his down and right.
