Green and purple are a good color match. Of course if you want to get into the full tertiary you could add some orange to round things out but I think this is looking pretty nice. Do you care? No? Either do I. Just eat it!
I don't think you can make an actual, normal cupcake with booze in it, so this is a perfect variation. With all the new cupcake and whipped cream flavored vodkas on the market now you can make all sorts of boozy faux baked goods. This is the kind of baking I can get behind.