WHAT IS THE VISOR FOOOOOOOOOOOORRR?!?
I think making the pixelling-out effect at the bottom more like the size & general pattern of the green effect in the background would've helped make things look a tiny bit more cohesive. As is, the cutoff looks a bit jarring to me, especially under his torso where it seems maybe something went askew? I like the subtle grime detail on his shoulder case & helmet, and his hair looks pretty spot-on with how I remember the larger 32-bit sprite portraits. Always glad to see MMX getting love, & you did a great job!