The design was done free-hand. I also painted it around the chandelier and other walls in the room. The design was chalked on the wall first and they I paint it. My two daughters and I do it together and we have painted it both of their bedrooms. It was inspired by my oldest daughter being taught the art of Indian Mehndi Bridal Tattooing with henna by her friends. I loved it and thought about painting on the walls. Of course, they were "in" with the idea for their bedrooms. Below are some more examples. Thanks!

What a wonderful idea!! It came out great!!! :)

I LOVE the corner design in the watermelon room! I SO wish this came in a stencil because I am not artistic at all and could never replicate it by hand.

Thank you! I think they have stencils available on-line now. Good luck!