quite a first post. nice shots. I would crop 3& 4 a wee bit tighter, but it is a matter of taste.
Looks like you worked a bit to pull the face out of the shadows, is that so? I might run levels and pull up the blacks a bit in that one if it can be done without destroying the fill light you have added.
1 is especially effective with a runner on third. Shame they don't have names on the backs of their jerseys.