I've been taking a figure drawing class, and I don't know if my anatomy has gotten any better, but I'm much MUCH faster now and my drawings look more 3d.
Each one of these was a 15 minute pose. (So is this okay in here even though it's not really a sketch?) The model wasn't really uber buff like this, I just exajurated the lighting and kind of got carried away because I had a bit of extra time.
The weird thing is, I was making sucky drawings at the beginning of class and was about to give up, but something changed, I dunno... this is the best thing I've done in that class so far.