is this a series or simply a montage...?
It looks to me more like a montage than an actual story. Great way to practice scene changes and visual story progression... Other than that, the 'only' dialogue I heard is the two main bad guys somewhere near the end. If you are actually goin to make a series out of this, it comes without saying that 'any' story needs more than two lines of dialogue...
Just do it... even if it sound waay cheesy. you gotta practice... Either that or hire professional voice actors or just find somebody you know who can do lines half-way decent. The animations is really up there so I gotta give you props for that. :) But you need to tinker around with the audio to fully round out your storytelling style.
As far as fight scenes... you can get away with just Gina pistol firing at baddies... at first... I'm gonna expect you to take it up a notch and throw in some upclose melee action or stealth kills as per her name implies... Galactic something nija assassin you know.
The red body suit and the character reminds me too much of Metroid prime. If i may make a suggestion, make her have a little darker style like... tech goth or something