Kim, this is excellent. I like the placement of the subject and subject-size in the frame. Nice room all around and what a perfect reflection. I like that there is a little more room at top than below.
IMO, it needs some CW rotation. Another suggestion is to make it a bit brighter.
Now that is a mirror reflection! Nice pose with a perfect HA. Personally I would have liked to have seen a bit of leg, but I still like it as is. Careful if you do go lighter as some of the whites, as posted, are already skimming the edge (according to PS histogram).