she's not sickle hocked, she actually may be more camped out but hard to judge by the photos. she has long gaskins and a well angled hock which may place her hind legs a bit behind the 'ideal line'. For what you are looking for, this is not a major concern. as you know, the pics are not ideal but I can see that her front legs looks clean, she has nice pasterns, she's a bit fat, shorter through the hip and perhaps a touch long in the back. none of these are critical issues for a pleasure horse if they are kept in good shape and properly worked. for what you are looking for i would be more concerned about how you liked her gaits and her attitude, which you already said is good. get a ppe to make sure there are no major issues and have fun!