Trying some new stuff....went text less cause I didnt have any ideas.
at first sight, it looks low quality. I see the textured look though.
the bg jersey doesn't work well to me. maybe try lowering it's opacity way down. you can try to fit in a small text right side in the dark area close to the neck area.
its an ok sig though, it doesn't have any really noticeable flaw.
ah, the image itself is low quality. for a 5 min sig, it looks ok. I don't know how fun that is to make though.