I love the images of butterflies. Here are two shirts that I did with the exact same image, using the exact same thread, but because of the color of the shirt that they were on they look very different. I like the purple one the best. Since the image was of a butterfly with one continuous thread, so the image did not require you to change threads I thought it would be fun to use a varigated thread, which is one that gradually changes from one color to the next.
I think it really helped to bring the butterflies to life.