u drop your hands after you've hit it and your shots dont tend to come from your chin. its only slight but you would get countered if fighting something that hits back. also it doesnt look like your hitting with the knuckle part of your glove with your left hooks which is sometimes called 'slapping' and you could break your hand if you land that shot on a harder target (e.g. another boxer or even a pad).
also you need a hair cut mate
but a lot of good stuff there aswell mate so take it only as constructive critisism.