Hi PeterGriffin456
I like them all, but would probably move your number 1 to be my number 4 (with all the others moving up), but I'd also swap your 5 and 6 (so reverse is last).
Reason being I like to be able to see the girl's face as well as her body (bouncing breasts, pumping/grinding hips etc) while it doing it's magic!
Have fun!
et232man