How can I make these sprites 'acceptable'

[Gors]

the main problem is that you sprited a good idle sprite, but the rest of the animations are edited from it, which makes for a bad animation. This is more blatant in the mask remove animation, where its head gets skewed instead of rotating with perspective in mind.

Don't be afraid of redrawing new frames for animations. It will be tricker yes for sure, but the end product will be leagues better than just editing the base pose further.