I don't think this horse is truly pigeon toed. If you look at the hairline of that left foot, it slopes down instead of being level. While it makes sense to balance the hoof in and of itself, in this horse's case, there must me an imbalance further up that needs to be compensated for, or else that line would be level. I would try taking a little off the inside and see if that levels out. I like the trim overall. I've seen much worse.