Dennis, way to go for persevering in your studies (unlike me). Keep it up! I like seeing your progress.
If you can't finish the sketch in 120sec, why not just pause it? What's wrong with that? The goal isn't speed sketching, it's learning anat. Just a thought.
I really want to add snat sketches to my daily practices . . . might use that site.
Question - how do you feel, personally, that you've improved since you've been doing all these study rounds?
Ryu, good paint-over. You articulated the face extremely well. Most realistic human countenance I've probably ever seen, brah.