Since I want to focus on drawing and painting, I skipped the composite images and went to the figure drawing class and assignments.
I started with simple poses without much foreshortening for my first figure drawing assignments, and once I'm confident with those I'll move on to more dynamic poses.
TBH, I'm really unhappy with the last pose, it's hard to tell what's going on from the skeleton, but looking back I don't think it was a good pose to begin with, the silhouette is not very readable.
For the other ones, I was amazed how much information a simple skeleton like this can covey.
(Pose refs are from Senshistock)