animal skeleton from left to right: ornithomimid, edaphosaurus, and sea cow.
I spent 45 minutes on each of them.
I tried to use the armsof edaphosaurus, hands of sea cow, and sactrum of ornithomimid to replace/apply the human skeleton. The difficulty was image trace part, since it washard to catch the pattern of pencil sketches. I tried hard to select and fix some missing part of traced pattern.