Galifia, I promise I WILL get that fixed when I can, but I need a break from working on Trevenant since that animation wasn't easy. Since we have the official artwork out, I definitely agree that the grain should be re-added. It'll be a bit time-consuming considering almost all of the parts need to be redone, but it's still certainly doable. Sorry for taking so long to respond.
Siiilver, for the most part that's unavoidable, but you did bring my attention to an error with the backsprite's hands that I should probably get to fixing.
EDIT: Fixed it, it was partly due to the body moving down while the arms rotated up, making some weird vibration illusions.