It looks like a ton of work went into this. While not perfect it's way beyond anything I could do. One thing you could easily fix is all the fade to blacks are way too long. At first I thought YouTube had broken.
It could do with some more work and I understand this is only a beta things like the guys in the engine look as if they are punching the fires. There are no women to wave off the ship at the beginning and it does seem to go on for a while until anything happens. If you can add more dialogue that would help.
Well done for what you have done so far.