So yeah, pretty simple; these are some photos of her jumping her mare Destiny. She always thinks her stirrups need to be raise one or two holes, when her instructor thinks they're fine. What do you think? She realizes she has chicken elbows going on and that has been corrected since, but she feels like she's arching her back in the second picture (the more recent), but that's how her instructor is telling her to do.
Could you give just and overall critique. Thanks!