Really well done! I don't usually think much of what often seem to be crudely contrived nudes in places one would never come across them, but this has a natural feel to it, and is a beautifully designed composition to boot. So, again...really well done...bravo!
I like this a lot, but as I scroll down (so it's cropped just below the log) her form becomes more sculptural, and her highlights/shadows appear stronger.