I just did some of these too. I used the hypershift colors that go from pink,purple,violet, to gold so it changes from tequila sunrise to green/gold.
The back is a thin black on the couple baits I painted like this and a hypershift/clear top coat sprayed over it so these light up like yours. Actually, I sprayed the whole baits with the top coat. Out in good sun and turned they are all over the place with color, but as you know, where the colors are darkest the shift in color is more dramatic.
We maybe watched the same video to get the Tequilla Sunrise pattern? I chased the blue down the sides a hair further than the video’s, but like the video’s end result better. Next time.