I,m no good at bodies so I,m practicing with just one body part.
Here is the first detailed hand I Tried to make. Please Criticize me constructively
I got this picture from Pinterest
Look how they broke down a hand into blocks and cylinders in the third picture
I recommend observing what your hand actually looks like and breaking it into blocks and cylinders. Also check this out https://www.animatorisland.com/tips-for-drawing-hands-101/
I can give you a hand base: And a body base: but that may just be my style.