hahha such a funny video and awesome work it looks like you spent alot of time on this

There are a lot of things to improve on, however this is pretty good for a first animation.
You might need to fix the VCAM because you can see it.
It might need some more work on animating a few parts.
Some parts sound unbearably loud, so a bit of tweeking should do it.
From what I can tell you use a drawing tablet, you should practice more by drawing art.
That's all the tips I can give you.
Good luck and have fun.