I personally don't think she would do very well in a halter class. Some of the confo issues she has are more aesthetic than functional problems. Her neck appears to be short and is very thin and couple that with her bigger head just doesn't make for an attractive halter type horse. Her withers are too tall, and something about her front pasterns/feet really bugs me. She might do well in a pleasure class depending on how she moves, she might also do well in speed classes if she has the ability or desire. So many of those depend on how she moves and if she can collect up and get on her hocks. That is too hard to tell from pix. Although, in a couple of years when she is more filled out and mature, she might do okay in some lower level halter classes. A lot of the issues that she has would be not nearly as noticable if she had a bit more weight and muscle tone but she is still a baby and that will come with time.