Butterfly is the 13th manicure in The Spring Thaw Nail Art Challenge. The most familiar butterfly in North America is the monarch. It has predominately orange wings, but some have a slight ombre yellow effect.
I used Essie's Fear or Desire, Sally Hansen's White Out, Orly's Goth and OPI's Copa-cabana.
Last but not least the final mani is Picnic. Here is the schedule for the challenge, if you are interested...remember no rules!