You really need to keep your hands up. If you watch your right hand when you're throwing a left jab or left punch it automatically drops leaving you open for a counter hook or straight. Make sure to keep your hands up, and pivot with your hips when throwing those punches; a lot of them looked sort of like arm punches.
What a stud
The power of Aleks, his small baby and pimp hardcore dogs has granted you useful insight, my friend.