Life Drawing

I found a really neat online life drawing tool that's really forced me to look at my artwork and officially see where I need to improve. Oddly enough, aside from the basics like proportions and foot placement, it seems like my biggest issue is doing posing that isn't insanely dynamic. Admittedly, seeing all of this makes me cringe a lot since I know where I was the last time I took life drawing classes but it's certainly nothing that I can't improve upon with a good deal of practice again.