Mastina I wish you luck on this project!
Quick question though, are you using a mouse or a tablet for these?
Cause I was gonna say this cool program called Lazy Nezumi helps to stableize things better for like making lineart and stuff
https://lazynezumi.com/
i seen a lot of people who are new to digital swear by it ^^
anyway it was nice to see you are working on developing this character more!