Looking for help tuning

Been kite foiling for a while, compent and more than comfortable with foiling manuevers at speed. But need some help with tuning or adjustment in technique/style.
Riding HS 850 and 1250, 85cm, FG 4-01.

To start pitch stability is quite dynamic.
My knees are often foward of toes, hips foward pushing. But upper body through shoulders is often leaning back. What help can be offered to get things more inline.

You have any video? Would be easier to help.

Looking for some stills. Unfortunately all the video is in MP4 and not supported.