I only saw the DL, PP and TGU on your site(?). I am not a professional strength coach by any means but have studied form and have helped some kids around here so take any advice with a grain of salt:
DL: pretty good actually. Your back seems a little vertical (should be near 45%) and your chin is "up". Most coaches want your eyes looking at a spot on the floor roughly 6 feet ahead. The video is a little too dark to pick out much more than that.
DL form PP: again, hard to make out any huge problems, however, many coaches do not want players doing
overhead lifts due to the possibility of shoulder injury or messing up throwing mechanics. I only let my players do pull-ups (negative loads), and kettlebell clean and presses and halo's. A "real" baseball strength coach could tell you much more.
TGU: here is where I see the biggest problem. You are going WAY too fast and are missing several key "check points" in your movement. This will severely limit your ability to go heavier or get the maximum benefit (i.e. stretching, balance, learning your "center-line", etc...). Break your TGU down into parts and then put it back together correctly:
TGU basics Overall you are doing pretty well, I'd say you need to go slow and break down the movements before adding more weight or reps. A good book is "Starting Strength" by Mark Rippetoe. Are you doing squats and cleans? Are you doing any rotational stuff w/ med balls?