I don't see how that many coats of the midcoat were "called for," considering that PPG Global paint (which is the OEM brand for Lamborghini) calls for 2 to 3 coats. I've experimented with Monterey Blue using PPG Global materials, and anything more than 3 coats of the midcoat causes the entire color to dramatically change. I'm almost positive that the extra pearl you used has something to do with it looking creamy instead of white. The white basecoat is about 99.9% pure white.