Ehh.....
It was not really that great. It lacks wayy to much. It looks to me that you are just looking off of other DBZ pics and then drawing them with a few different aspects. If so, you should instead study how to draw anatomy and facial features. Trust me, your ability to draw will greatly increase, I used to copy from DBZ pics myself.... (this is assuming you actually did copy from them). Also, the story is bland and lacking. You need to come up with something original and not just copy what has already happened on the show.