My trainer has never said anything about my positioning, except some pictures i've seen on here show people sitting differently? Can someone show me a correct position, explain it to me or show a picture? It'd be greatly appreciated. By the way, this isn't my normal horse so I was sort of hesitant so I think I look like I'm sitting funny a bit.
The only biggie I notice is that your reins are way too long because your elbows should not be that far behind your back. Your back appears that you have a good curvature which many riders lack naturally and this helps with looking straight up when sitting but need to relax lower back a little bit so you don't look so stiff and drop your shoulders so you elbows and arms are more relaxed.