Scorpion is the absolute strongest here. He has a grungy look because of the yellow spilled paint thing.
I think the rest are missing that raw "grunge factor" - which disappoints me because even though it's not a complete redesign - you've definitely put at least Scorpion into a new, fresh light.
Sonya and Kano look too clean - especially when compared to Scorpion.
Doctors heal you, Artists immortalize you.
"Those who can, do. Those who can't, teach" - bullshit.
The usual staples for anatomy: