For the purpose of this challenge I've decided to only post the one invader. Below are my other characters all in the same theme.
Really good representation.
I wish I could enlarge all of them to see more details. This is classic RPG trio. From the top: rogue, warrior and mage :D
Yeah I know, just ddn't want 3 different entries.
You can do multiple entries for any challenge, btw. (Unfortunaltely this one's deadline is over).