Here we have a sponge gradient mani done with OPI Gargantuan Green Grape and Wet n Wild Sunny Side Up. I tried my hand at following The Nailasaurus 's sponging tutorial (found here). I was inspired by the beautiful color combo she did here. It was harder than I expected and ended up sponging SSU over GGG instead of doing exactly what the tutorial said.
Im sure this combo would look great matted too.