Pros: This is great and perfect comic book quality. Your cut outs are getting better, but still some edges. I'll tell you how to improve that a bit.
Cons: The wall is cut off, I'll tell you how we can fix that.
Improvements: Take the eraser tool and erase the very edges of his shoulder and hair take your time with this, try to get em as smooth as possible. You should add a border or a different type of effect to mask the parts of the wall that are cut off and the bottom of his chest, like a fade using the eraser tool or something that you can come up with.
Notes: You're getting better and better, keep practicing my friend. The artist is Marvel for your information.