Any tips to improve the animation

[unborn dew]

Any tips to improve the animation?
Don't pay attention to the texture it is just for practice

[haughty steeple]

I can tell he chopped his head off with his hands i would just make the hands at the start before the stop be quicker with an ease out

Also you can make his hands shake as well after the lift off

And shaking only upwards dosent make sense us humans aren't perfect in disturbing power with our hands some times we lift things and it turns right

Or left

[rotund jolt]

The big thing for me is that you're using linear transforms. This is actually a super solid animation despite that though.

Give bezier curves a try!