I love holographic nail polish!! I tried to create this gradient using the two holo-polishes that I have. It wasn't very successful.
The gradient itself is pretty and the colours work nicely together. However, somehow during the sponging technique the holographic effect was dulled down tremendously, which makes me sad. With a lack of sunlight my son and I tried to create lighting to show the holographic shimmer, but it didn't really work.
I used Layla's Mercury Twilight and Ultra Violet! I need to get more holographic polishes in different colours because they are so cool! :-D