How to do :
Step 1 : Apply two coats of background polish on all 10 nails. Apply your first wing-color choice in the form of a curved line. Apply your second wing-color choice right next to it, and leave a space so you can repeat the curved lines as a mirror image.
Step 2 : Take your striper brush and very lightly pull your brush through both colors, stopping in the middle of the empty space. Repeat this to fill out the wing design, and make sure to angle the lines toward the middle so they meet in the center. The lines should all meet in the center of the empty space you left.
Step 3 : Once your wings are marbleized on all the nails, create the detail for your butterfly by painting the body and outlining the butterfly for a better look.