Don't know about which section this should be in. How old/what weight/height are you?
I think your squats have your knees travelling too far forward, so you aren't using the hamstrings/glutes optimally. Fixing that would put 20-40 lbs on the lift.
First set of deadlifts made me cringe. Have you tried alternating grip yet?
Press grip looks too narrow.
Have you got the book?