He always looks like that, Wilder on the other hand looks like he's bulimic... Stiverne is the far more healthier looking of the two.
He jumps back pretty well to avoid punches, and likes to drop the right hand sometimes afterwards, but Wilder on his back foot will probably not end well for him.
No but have you ever saw Wilder on his back foot much? I think he will find himself there, and his lack of experience will hurt.
Nothing wrong with an extra bacon on the sides Wilder looks like an anorexic baby giraffe, Stiverne is gonna put him on ice skates!