Butterflies looks especially good at the mid of your shoulder/back
Butterflies are femine type of tattoos. You can chose in wide-variety like colorful, realistic, black.
Butterfly tattoos have a lot of meanings, like rebirth, love ( in china), delicate beauty (just think about a real butterfly), freedom (as a butterfly can fly away anytime).
Butterfly consists 4 cycle of life like egg, larva, pupa and adult. So it can symbolise that you are an adult at the top of your life cycle.
Some full body butterfly tattoo designs