I LOVE THESE. I feel like I could just leave it at that, show you the pictures, and be done. They're so gorgeous, they speak for themselves. Buuuuuuuut, I guess you'll want to know the polishes I used, and how I did them, so here goes!
I began with two coats of ellagee's BOOM! Talk about one AMAZING polish! I used top coat over BOOM! to make sure the surface was super smooth. Then, I randomly added striping tape all over my nails. I just put it wherever, without rhyme or reason. Once the tape was on, I used a make-up sponge to create a gradient using three polishes from China Glaze. X-Ta-Sea (purple), Seas the Day (red), and Stoked to Be Soaked (orange shimmer) were PERFECT when they were blended together for this gradient. They look just like a sunset! I ended up sponging the gradient on over each nail twice, to obtain the opacity you see here. Then I pulled the tape off, top coated them, and viola! Enjoy! :)