Quote - Lots of great little touches, such as the wrench floating as she opens the airlock.

That was the one that got me as well.

This is excellent. As well as the technical quality, you've built the story very carefully too. I wondered if the editing in the middle third could have been a touch faster, from where the leading character has made it into the airlock to when she wakes up (a nice shock moment, btw).

And how about leaving all your opening credits until the end of this section? It would work, and would give you a fashionably-long intro sequence :-) (see 'Serenity' as an example).

Just a couple of suggestions, no criticism implied; I really think you've done a good job.