Wow. On the bench, right below the chest line is about as low as you should be bringing the bar. You are taking the whole elbow tuck thing a bit too far...
Squat:
http://www.youtube.com/watch?v=O2ySHjbNajM
http://www.youtube.com/watch?v=zefkYy1iQCc
http://www.youtube.com/watch?v=di7oC6FTDBk
Deadlift:
http://www.youtube.com/watch?v=-6HIIBIEVpk
Row:
http://www.youtube.com/watch?v=-cpWRVpNLAU
Bench:
http://www.youtube.com/watch?v=7kyaFxM-jvo
Three squat videos just to check if my back is in extension. As far as I can tell, it looks like it is in the second video.
Wow. On the bench, right below the chest line is about as low as you should be bringing the bar. You are taking the whole elbow tuck thing a bit too far...
Belly-benching is for equipped-lifters, knucklehead.
I suggest you reread the Bench chapter of SS throughly.
compared to the bench, everything else looks minor/meaningless.
However, you never manage to extend/tighten your lower back at the bottom end of your deadlift. You begin with a rounded back. It also looks like you may have lowered it before fully locking it out, this is very minor but a bad habit to get into.