Man, look at that!
Your rigs are amazing. Love how the shoulder moves as a solid piece there and the motion in the legs looks just perfect.
Now if I may, I have some suggestions (how could I not?
).
I leave here the original Goro animation for reference while you read these.
First, yeah, it still bugs me that the top right hand still seems to scrape the bottom hand. I think the issue is that in the original the bottom arms aren't posed with the elbows spread open like that.
Instead, the elbows are shifted backwards behind the body, with the forearms close to the waist (and the palms slightly facing up), allowing each pair of arms their own space of motion.
You may need to open the top pair of elbows a little more too.
I think it helps if you visualize both pairs of arms as separate, each doing a separate motion from the other pair.
Also see that the animation should look symmetrical when seen from the front.
If I'm not mistaken I'm seeing some jolting in the top left elbow that makes it go above shoulder level that's not in the right one.
Then, I think the motion in the fingers is too marked. If you look at the original, someone could argue there's no motion at all (not my intention). I think you should keep some flexing to the fingers but only at a minimum, necessary to give them some life. Also, I'd try to make the flexing happen mostly in the joints closest to the tip of the fingers, to give it a clenching expression, instead of just making it like he is flexing his fingers.
Then, as someone pointed out, the breathing in the stomach was a nice touch but I think you should match that with the chest pumping up as the stomach flattens. Lowering the brow and opening the mouth as he exhales could also be a nice touch.
Finally, there's something strange going on with the right foot. Not so much the left one. For some reason it looks as if the bandages are rigid instead of fitted to the foot, so the foot ends up looking like it's a solid piece moving inside a socket or something.
Despite the lengthy critique, I want to stress that it's much more what I see right than what I see wrong with it.
Beautiful work, man!
