I hope this isn’t to late for the challenge, I took some liberties with exaggeration and altering the position I hope that’s ok:)

Here's my attempt at doing a torso with some fairly sticky oil-based clay. I think the hardest part was trying to get into crevices like the around the spine, under the arms, and that kind of thing. And trying to get the muscles, particularly in the abdomen, to look like they are part of the form and not painted on. My method was basically trying to block in planes with the old transit card, then refine it a little more with the paper clip. I thought maybe the Sharpie would be useful for something but it really only ended up being used to push aluminum foil farther down when I would run into while modelling. So not super useful, but also super useful.