Christian Louboutin Inspired nails! I love this style! I agree totally and Wildfire with Black Pool IS the closest match. I've never done the gradient but if I were; I would use the black CND additive.
In the photos I used Nude Nickers, Black Pool and Wildfire.
The French tips is Beau, Decadence (with Ruby Ritz on top), Black Pool with a gold decal and Wildfire under the free edge. I do aplogize that my nails are not as tidy and shaped as I'd like because I have a broken arm and a cast (covered in lace).
The photos should show you the colours though... I hope this helps.