I guess it might have made more sense if I saw some other entries, but this was not good to me. What I thought was weird was how Vegeta didn't appear in his Super Saiyan (1 or 2) form when fighting Goku, or at least when firing his Big Bang attack. Well, he did become one later. It just seems like everyone is acting so much out of character. Goku would never kill Vegeta after getting a son unless he was being mind controlled or something. I also did not like how everything just seems to be still images. It just seemed so disorganized.
I suggest you try to put in action and not just a bunch of pictures. You could use sprite work or regular animation and watch and read some of the tutorials. This might have had a higher rating if you had just submitted it a few days later. I guess you were being courageous by submitting it on your own. Is that supposed to be Future Trunks?