Hey Pharm,
I forget who it was here that did it but they sprayed a flat coat over the PE to change the colors a bit. They also drybrushed some pigment in there as well. I also read a post on another site about the same issue your having. Apparently I guess different colors look different at different scales. Maybe Eduard used dark blue on purpose? Anyways, good luck, i'm sure you'll figure it out.
later,
Adam