She is quite a bit tied in in her knees, and her hocks are a litte posty. She won't make a bad riding horse, but I wouldn't push it as far as hard riding, jumping etc.. could develop arthritis or other inflammations in those joints...I would like to see her pasterns,fetlocks, hooves, as that would help determine her future conformation. She could surprise you and tie in and fill out nicely, but I do however suggest seeing a corrective farrier, knows the legs real well, to make up for her conformation, whether it puts her more on her toes to put some slack in those tendons or more on her heel to put more pressure on the tendons, it will help her in stride. Could also be some bowed tendons in the back of her front legs, I would have the fairier check that out, feel if any tension, Also maybe some joint supplement might help loosen her up. Other than that she is a gorgeous young horse and she will always be a little different in her legs, but I think shes going to be a beautiful horse in time, and I really do think she is going to surprise you. Happy trails to you and your horse though! :) Hope I did SOME good!