Great job! I can give you a few tips to drawing your OWN base.
Well, one, I do not really like to trace, use other people's bases, I don't watch any videos, and I can make it look like my own artwork.
For example, I guess you can look at a certain picture for help. But DO NOT trace.
You need it to be your own artwork.
Some ways you can make the anatomy/body/base really good is you can look at a picture draw. It goes on and on.