These are both very nice.
The second one's a bit disconcerting, since it's a disaster as a "picture of a girl" but as an exercise in form it's quite nice, and it has a little touch of naughty and erotic thrown in, which kind of conflicts with the "this is not a picture of a girl but an exercise in form".
Suffice it to say, my reaction to the second one is complex, but overall I quite like it.
The first one is nice, but not complex at all, and I find it more of a good example of an overdone form without much new to say. But, still nice to look at and very very pleasing.