Sig 1: 9/10 = 950K
Great text, color and logo swap, and player render creation and application.
Sig 2: 9/10 = 950K x 2 = 1.9M
Quality logo swap, although it doesn't desaturate/fade the same as the rest of the jersey (the golden glow in the corner highlights this). the 45-degree symmetry is very unique. The golden glow in opposite corners pushes the eye towards the render's face. I'm not sure why the face is so red though, and doesn't seem to match the vibrancy of the helmet. The shading on the helmet is a great example of lighting mastery, and pulling those details out of a black helmet is pretty cool, particularly when your halftone pattern is gradually overlaying it.
Sig 3: 9/10 = 950K x 2 = 1.9M
The light manipulation around the face and into the jersey is tops. The glow on top to illuminate the details in the helmet, to the tiny pockmarks on the shoulders, to the creases in the jersey folds, all are different textures/materials and illuminate wonderfully. the linework background and dot pattern foreground, combined with the saturated palette give this a retro feel. very cool.
Sig 4: 10/10 = 1.1M x 2 = 2.2M
The jersey manipulation alone is enough to earn a 10, but the face/head lighting and text certainly help. The background ghosts don't add too much and im concerned that the left one softens the shoulder contrast of the main image (but that might be an outer glow? either way, that spot looks a little inconsistent). Your dot overlays give every signature a nice gritty touch, and I'm not quite sure how you do it, especially on a 72 PPI export.