No opinion on conformation at all because the photos do not allow for it.
I like a good Thoroughbred because they are often a challenge and very athletic.. but w/o better photos I cannot say this horse is good or bad. She is a pretty color.
BTW a first horse should be about 12 years old (or more) and broke to death.. I am not saying this horse is or is not.. A friendly horse that is not afraid of you may be the very devil to ride.