Just found this while browsing through the gallery.  Awesome work!  I love it!

you're right, I gave it a revision to those things you mentioned and i believe i sort of fixed them. the main issue with the face subpx was basically that there was none in a particular frame, wich made it blink ackwardly. made it more sublte as well

some issues like the right shoulder are just a biproduct of the right arm being black, i dont think i'll touch that for now. as for bobbing, its quite a hard thing to get right with so few frames.
 

Looks good, despite a few problems.

The back view looks like he's going to tumble backwards.

The bobbing is a bit unsettling: too jerky (because too short?) and out of phase (should be highest when both legs are vertical).

Not sure about the face subpixeling, since there is none elsewhere; makes his right eye blink in a weird way.