Re: Squat, Press, Power Clean Form
Ill take a stab,
squat. Really hard to see but it looks like you could keep your eyes/head a little higher, opening your chest, which will keep the arch. Second I am not sure if you are pressing you knees outward, which will also help.
Press: IF you pause each rep you can see that your slightly forward of directly overhead. (IMHO) And on a few of the reps you did not completely engage the shoulders at the top. on the very last rep you did engage the shoulders very well but it looked like you did so as you paused to finish. Remember to explode the press overhead, extending the arms and engaging the shoulders. (remember make the neck disappear).
thats all I had time for. Good luck