Studies from life drawing! It was a 3 hour session of the same pose, but I did a few different things.

top left; 45 minutes
bottom left; about 15-20 minutes, it wasn't right
top right; retry, about 60 minutes.
bottom right 2 sketches; perspective/angle doodles.

I'd like to do a study from an odd angle, to train perspective. For all my form knowledge I still think that's difficult to construct. Maybe I'm just making it harder than it is (yes).