Photo # 52: Rachel sends us 3 photos in a sequence, and would like her position critiqued

I am concerned about my position going over solid xc fences. In the first picture, I feel like I am too far forward - my shoulders are further forward than my knees and it kind of looks like I am laying on his neck. But then in the second picture, it looks as if I am already lightly sitting in the saddle mid jump. So then that leads me to think that if my shoulders were farther back during the take off, I would have ended up getting left way behind and pulling on his face mid jump? (Rachel)