I've been wondering about the inspiration for both the personality and the appearance decisions, and while I'm still kinda stumped on personality, the way the eyes are defaulted into slits on the mask reminded me of the Guy Fawkes mask. On top of that, the hood you can see Dartrix is wearing reminds of the monk that wore a hooded robe who would accompany Robin Hood, or even is emblematic of Robin 'Hood' himself.