Don't be so hard on yourself big man. I thought the cleans were fine. A clean can always be faster, no matter how fast. Also, keep in mind, I am sure your CNS was already slightly taxed from doing Hang Snatches and Clean and Push Press first, so I am sure the cleans would have had more snap had you done them first.
As for your elbows, they looked to be at an adequate height. Not high enough if you were gonna compete in the C and J, but you're training for football, so who cares?? As long as the movement is quick and explosive. You have the same problem as I do with the rack. I've got 20 . 5" arms and my elbows only get about as high as yours in the video, you look like you have 20-21" guns, so it is hard to get an ultra high rack. If you ever want to compete in O-lifting, you'd have to train down your arms, but, like I said, the lift was in good form and explosive (would be even more explosive if you did them first in the session), which is all you should be concerned about, so don't sweat your elbows. I went to college with a kid whose elbows would point at the roof in his rack and he'd say "Now thats a rack", then I would flex in his face and say "Now thats an arm".
I do have a question though about your foot spacing. When I do power cleans I land with my feet spread a little wider and then bring them in, It looks almost identical to that dude on the under armour commercial is the best way I can describe it. I noticed your feet don't come to far apart when you land. Is your style better do you think? or is is just personal preference?
Also, about the shoes? Are Chuck Taylor's good enough or would you prefer real OL shoes like Otomix??