I love the hairstyle and the rainbow colored hair. You did an excellent job on physics, lighting, and shadows. Her face looks like she's been doing some fun stuff, but what was she doing under the bag for that much saliva to have that big of a string? The laces on the neck collar are a nice touch. The background's lighting is perfectly proportioned. Her tongue looks too deflated and since that's a big part of the picture, that's kind of disappointing. But overall, this looks pretty hot.