While I don't care about using alien ships Syulen looks really cool. C1 too, I guess.
Storm on the other hand... this thing should be like half the size it is now. I may be exaggerating a bit but one-man "light" tank should not be this big. I also can't get used to the track pods being completely static - they look like they should be split in two and act like suspension (even though it wouldn't make sense with tracks).
Hell, at least make them move in relation to the main body.
That said, MLRS variant looks cool - if only for the rocket barrage.