Hi there, I found your art journey as well !
I can really see great improvement for each skeleton you've drawn. I really enjoy how you've made the divisions inside the cylinders as well, they really do make it easier to follow which direction each appendage is moving towards !
May I ask where you found the models you used for this exercise? If you have already mentioned this, and i have missed it, please forgive me ^^ !
Good luck with future works !