Solid, but lacking polish
You did a good job of adding your animation over existing bits, but it seems anything you animated yourself was influenced to the point of tutorship by a few ubiquitous animes that Newgrounds could do with less of.
DBZ, Naruto, and Bleach, predominantly. The eye shape, finger sign, and samurai fight in mid air were dead giveaways.
The music was fitting, but you used such popular songs that it's nigh impossible to fuck that bit up.
You've got potential, but I think you should optimize your own abilities.