your hits are noticably better that's for sure. YOu've also added a little more variety, though still not enough. Have you tried extending your arms further away from your core? Like make your movements more outward than close to your body?
Anyways some nice hits there. I didn't see the first video, but you are doing very well for such a short time (3 weeks?) Try not to hit on the same beat over and over, every now and then hit to the voices if there is a noticable point like when the guy goes "Gotta be Gotta be Gotta be Gotta be " real quick you cud do some uptempo moves you kno....be creative. Maybe a bit more speed cud help, because those moves mite work for the 11 seconds of dancing you see in a video, but on the dancefloor...