This first page has drawings of a dancer from a magazine ad, along with some Matrix poses:
The dancers on this page were "x-rayed" from a cigarette ad, followed by a more healthy yoga couple:
And this page contains my arm without its skin, and some life-drawings from a Pinoy Eskrima (Philipino Stick Fighting) session held at the college. The man with the short ponytail is the sensei. I took his Ninpo Taijutsu class the term before.
The first page in this pair is from a book by the famous photographer Eadweard Muybridge. The second is from an animation book, if I remember correctly. Nothing is traced, just drawn to start becoming familiar with the subtleties of how animals move:
More animal drawings. Trying to guess what muscles are under the fur: