They all looked pretty good to me, I didn't see anything major.
Some people may see some minor points; the only thing I can think of is that it looks like your toes may be pointed out a bit too much (ie >30°). They looked about 45° or so. Not a grave mistake, but if you can't keep your knees tracked over your toes, it could cause some pain in your knees.
My opinion only. Nice squats.![]()