Well im sorry...
i dont like to give bad reviews but thats the way it is. im one of the biggest Halo fans of this galaxy but becuz i love it so bad i gave you a 5. Anyway i have some tips:
1 practice drawning( i cant draw either so i dont have to complain much.)
2 Use some better sounds, or just rip it off from Halo, thats better than nothing.
3 Putt all your weight behind your project and keep making it till you faint.
4 if you use some good humor in a movie or game people will give you better reviews even if the graphics or music or something like that sucked. Well, i hope i gave you some ideas and courage to make another film about Halo!=)