Timothy Muller:

Hello there. My recommendation for you would be to practice your posing skills. Focus on contrapposto and line of action. Also check out Ed Hook's "Acting for Animators" if you haven't already.
Keep up the good work. Cheers!

Riley Thompson:

watch for poppiness. Theres some spots where it jumps tp far in a single frame when he swings his arm. the poses are also pretty stiff, activate the wrists and fingers more. also it looks like your li[synch is off a couple frames.