I don't know much about AM, but I've worked in Photoshop for years so...
Her teeth in the picture on the right are waaay, way too white. It looks very artificial and it just screams too much Photoshop. I suggest you tone down that white a bit, so that it looks more natural, while still impressive.
The 'before' picture isn't so good either (though less obvious): the orange lips are weird, and the yellow of the teeth doesn't look natural. Notice the shadows on the lower teeth where the yellow is very dark? That's a problem, because it gives it away (colorized picture).