It's definitely got alot of potential, I like the way you introduced the trailer with the predator text against the space & distorted backgrounds, that was great. As for the actual fights & battles...the aliens look like they just fly through the air when they get hit. It looks a little strange to be honest, but considering that you're probably working with a limited budget, it's understandable. Some great work with the CG & use of the AVP music, it was put together really well, & I'll definitely watch the final film once it's finished.