Hi,
Don't give up if it's whats you really want. Keep working towards it! Being not a Phantasy Star fan...it's difficult to ascertain the relevance. If these are modelled based off of characters/monsters in that game then show some comparisons so we can see how well you have captured their likeness.
Also, explain about what skills you used to make your pieces more. ie: this piece was done using mental ray, photoshop, etc...and anything that shows how you work well within technical spec, like poly counts where applicable. Some description about them would be good too, there are alot of robots...what are their different skills or defining aspects?
I think people are jaded to robots and spaceships too...there are TONS of them on reels. So they have to be that much more awesome and that much more unique to stand out from the crowd. Vary it up a little and show your range with some environments or humanoids. Personally, I would also prune it down a bit. Show only your best stuff. You have some great stuff on your site, but you have some not so great stuff also. If an employer has 2 minutes to take a look at your site, they probably won't check out every pic...so you want to make sure your best (probably most recent stuff) gets their attention