Looks pretty good! She's not interfering with the horse, she's looking out towards the next jump, her hand position is such that she will be able to maintain control on landing. A few minor postion faults (foot turned out, hands a little high etc) will improve with practise. Tell her to do lots of gridwork concentrating on keeping her forearms in a line with the bit, look straight ahead, and toes pointing forward.
Nice folding, confident, and looks fairly secure (that's the main thing!)
I'm not one to judge jumping really, but along with the other points made, I would suggest straightening your back. It looks painful and unnatural in the second picture. The first one seems more relaxed in comparison. The first horse is also very lovely.
I lik the fact that she is not interfering with the horses mouth how ever she is too far forward and has folded too much at the hip and her lower leg is to far back. You do not want your shoulders to get ahead or your knees otherwise you are out of balance. If either of these horses had stopped beforet ake off the rider wuld have been at risk of falling of over the shoulder. The amount of fold for this size of jump is pretty minimal. Only if the fences were about 4ft plus would she need to fold as much as she is.
Reins are too loose, 2nd pic the horse looks like it can jump higher that the jump itself. Put it higher then your friend wont look unbalanced. She needs her head to be looking through the ponies ears. She looks like she's watching something else. If her head wasnt so high she look right.
You are too harsh, and your spelling could be improved.
She is looking towards the next jump, not at the photographer. She is not interfering with the horse and is sympathetic and encouraging. OK its not Horse of the Year Show but I've seen worse.
Which side of the bed did you get out of?
I don't want to be rude or anything, but that was too harsh. I don't know how to judge jumping, but I think she looks good in the pictures. Could you please be a little bit more careful with the words you choose to use? You don't want to hurt somebody by mistake. Thank you.