First thoughts:
1) Model looks good. If I had MY preference, I'd tone her butt down just a bit- as it is she looks off-balance. But hey, it's "in Space" ...
2) Alien looks cartoonish rather than "Alien" because the face is TOO Human-appearing (especially with the brow and human dentition). I do understand the need for a more human face, however. (A real octopus doesn't really have a face, the eyes are MUCH lower on the body and the mouth {more an upside-down parrot-like beak} is on the underside at the center of the tentacles- what is often drawn as the mouth is actually the siphon.) I'd suggest giving it/him a different mouth (maybe a muzzle?) or changing the eyes (perhaps more like a REAL cephalopod).
3) Currently, I do not have a working mouse and like others, I'm finding the Pheromone mini-game unplayable* with a touchpad. Also, there's no instructions, so I was uncertain as to just what I'm supposed to do.
Anyway, I'll be keeping an eye on this one. Good Luck.
* And by "Unplayable", I meant IMPOSSIBLE to actually PLAY the game for more than one "kill", not just Difficult to win. There's no real in-game instructions on how to play the mini-game, but from comments in this thread, apparently you need 6 kills per round. Nope, no way, Not going to happen on a touchpad. I could barely get 1 kill and even just 2 was impossible before time ran out.