I like the idea, but the full on sun is a bit much although you probably couldn't get away from that without violating the whole silhouette thing, so...
I just think this is a gorgeous portrait...I love how she is looking the other way and it's almost like the image is not focused on her, but yet it is. I gave this a 10.
I like her and the lighting that's being used to light her but that sky being so blown out, for me personally, it takes away from the subject. It draws me away from the main point of concentration.