I settled on Ferris wheel in sunset, all lighted up and all ready for fun, and FUN spelled on one of the boards in lights. For me, carnival is all about fun, and blinking lights, and sounds, and aromas of different food vendors, and rides, and tide of people that just for a moment forgot about problems and surrender to moment, and let their inner child shine...
My version of carnival was loosely based on the pick I found on Google when I searched for inspiration other than my original. I did pretty sunset gradient using following polishes: China Glaze - Japanese Koi, Essence - Wanna be your sunshine, Sally Hansen - Big teal and Pacific blue. Freehand design done using black and white acrylic paint. It is not perfect, but fine brush and I are yet to become best friends.. On my thumb, I painted different kind of ride, just for variety, and you can see it on collage pic.
Hope you like it as much as I did.