Hello!! Here is what I did with your tutorial :D

 

First, I did what you said to do and practiced drawing skeletal structures of different animals, specifically I practiced birds and raptors. I already kinda knew what creature I wanted to make (this was for a school assignment) so I just did birds and raptors and you ca see those below.

 

below is the final page of the creature i made using your tutorial, all the red text is information about them.