Hey! Looks like I'm late for this one. Ltc4h has chopped this one through pretty well. I very much like this mare, she is gorgeous!
As far as over-all Appendix confo; above average for what I generally see! The least desired spot on her in my personal opinion (aside from legs/hooves) would be her under-toned hindquarters which is perfectly improvable through conditioning such as up-hill work, and walk/canter transitions where you ask for canter from the walk and after only 1-2 strides, slow back to a walk. 3-5 times in a session, with a couple sessions in your ride. When a horse picks up the canter from the walk he/she is using alot of hind-end power by pushing the rest of their body forward with their hindquarters (this also helps for a horse that is heavy on the forehand).
As far as her left leg being turned out, her hoof is also slightly toed-out. The right leg, since it is positioned further back, is harder to tell so I'm not saying whether she is just toed-out on both hooves, or the left. This also is "help-able" through some correctional trimming.
Overall, I think her faults are few and minor and I do also believe she would make a great speed event horse!
Other than that: she is beautiful, Beautiful BEAUTIFUL!!
Good luck!