@Vladimir - the dryer sheets are found where you get laundry washing detergent. They're not common here in Australia because we don't need to use clothes dryers very often.
I've been playing around with colour combinations. One that seems to work at the moment is a light base of "vile green" and a top of 'old bone white' (both Createx illustration bloodline series.) I'll do a light glaze/wash of 'dermatitis tan' to see if I can get the look. So far colour shift doesn't seem to be an issue.