My only real issue with the Aliens is that they spent a lot of time doing nothing when they could've been killing the shit out of Predalex. One got its arms cut off and didn't even give a shit, so it's not as if the film downplayed their resilience or anything, but the fights with the Alien warriors would've been improved a lot if they had been less of a case of the Aliens waiting for Predalex to choose how to kill them.
It would be better dramatically to allow the Aliens to get the upper hand and then have Predalex pull some act of cleverness or ruthlessness out of nowhere. Or even if the Aliens fought well, but Predalex was just a step ahead all the time.
I really like the Predalien fight, especially when
Spoiler
Predalex impales its head with the thing's own tail... and then it gets up.
Good work on the Predalien design, too.