Heh! I betchya that red is the red foam fluff from a GW carrying case! BUT It's very nice to see a well painted banshee, especially in nontraditional colours...despite the fluff :)
I dont know what the red on the hair is, its not on the mini now so may have been lint. As for the red elsewhere the flesh is torn and exposing the rotten muscles below in several places on this mini I use pink then red ink on it and it looks pretty good just need a better camera so it shows better :)