Its a nice head stall but if I were you I would go for a lighter colored leather to really contrast with her coloring, if your planning on showing it would be more eye catching for the judge and would really get their attention. But if not then camo is epic!
LOVVEEE the halter, but I don't know if it's really her color. It doesn't look bad, but I (personally) think blue or orange would be a bit more her color, but if it's going with camo tack (Which I kinda like for her), then I would be afraid of that caliber of neon would really outdo the camo and make it look mis-matched. I'd go a more camo color like a softer green (since brown is boring). Leather would look WONDERFUL with that camo, but way more expensive.
My two-cents on it, being a tack-matching obessor ;) LOL.