I'm not encountering this face problem, but I threw an attempt to fix it anyway by fleshing out Tyvon's glasses a bit, giving the Rocket Grunt a more defined mouth and altering the shading on the shadow under his cap slightly (his eyes are supposed to be barely visible because of it), as well as moving Tygoose's facial structure to the left and altering the flyaway hair.
*
I'll fix the Grunt's legs later.
*additional facial fix
*
I'll fix the Grunt's legs later.
*additional facial fix