/ic/ - Artwork/Critique

Really new to pixel art & this is my first real animation. I understand I probably have way too many colors.

How the fuck do I make my lines less jagged?

I don't know what I'm doing with color, my palette here probably has way too much going on.

How to fuck do I make any sort of curved/abnormal line in pixel art without creating a jagged mess? I understand this is likely fundamental but I don't know if there is some sort of formula I go by, so I just eyeball it.