Thank you for your time and comments!
You are right, depending on parts, some animations are different. Futhermore, additional skills (and their dedicated animation) are also unlocked. At the end of the jam a more successful demo will be shared.
I am not aware about collision boxes issue. Thank you to share your feedback. Player's damaging area is just right in front of him. Where the sword slashes. This area is may be too small. I need to check this feature.