A nude I did a few weeks ago. I really like the way the bottom of her foot turned out, but I don't even know what's going on with those hands of hers, lol.
As you already pointed out the bottom of the foot is very well done, but what really grabs my attention are her love-handles. They really give a feeling of softness and vulnerability that I don't normally see in many nudes (then again that could be because I don't generally look at artistic nudes).