Oh, I just saw the MA at my local counter do this effect recently. She used Smoulder e/k (ok, I suck with eyepencil names cause I use fluidlines, sorry if that's wrong) as a base all over. Then she used several different shadows depending on what colour you wanted. Gorgeous gold reflected green overtop. Vellum reflected blue-purple. Pink opal would be gorgeous over top, but I didn't see it. I can just imagine it. I think if you tried this and just played around you would find what you were looking for. I think the e/k would be better suited for this because it would be sticky and the e/s would blend and stick to it. If you figure out a great combo, be sure to post an FOTD for us.