This was a study of the human skeleton, first step was to look up images and practice drawing some vital areas of the skeleton. Then I needed to label the various bones and label what each joint type; hinge, pivot or ball and socket. The areas I decided to look at specifically are around the joints, I had trouble with the rib-cage, trying to repeat it without making it look too messy. The hands and feet are also difficult as they are made up of lots of tiny bones.
I did the final study in photoshop so I could properly align it and adjust it if needed. It also help by making guides for symmetrical things. I made the final skeleton about 8 1/2 heads tall.
I haven't drawn many skeletons before, so this was quite helpful in giving me a better understanding of the human form. Like the original sketches, I had trouble with the rib-cage and the bones around the neck.