you don't have to make a cupcake on each of your nails, it would look great to have one on just 1-2 fingers on each hand ^^ - but if this was on my own nails I would probably go crazy with all the nails ;D I was requested to do a cupcake design, and I remembered a cute badge I saw in a store some weeks ago (with a cute cupcake!) ^^ so used a mix of memory and imagination. my birthday is in a week (7th of Feb) so I'm going to make a couple of sweets inspired tutorials 
you could even mix this design with the candy hearts I uploaded a week ago