I like it but a couple things seem off to me.
The large splatter to the left of his face is a bit distracting mainly because everything on that side is a darker color and that splatter is a lighter color. Just stands out a bit. Also the font for "Training Grounds" works well but the "Week 77" doesnt really fit in my opinion. I feel its too sharp for grunge style. Also a little more blending around his shoulders could help but overall not bad.