Them's some tasty paintjobs, man. I really love those slightly bronze-toned guys at the top, especially the (dread-free!) Predalien conversion. Reminds me of my childhood Kenner Scorpion Alien, sadly lost to the jaws of a dog called Rosie many moons ago. Really wish I could get my hands on one or two of those Giger-esque Praetorians, but all I can ever find on aftermarket are the more AvP styled Royal Guards(?)
I'm gonna do some test schemes on a few GF9 guys cause they're cheap, plastic and easily stripped with degreaser. You've definitely given me some inspiration.
(Love that 3rd edition Hive Tyrant btw, I know the sculpt is kinda goofy but imo it has a way cooler silhouette than the newer kit)