This was at the Logan Willow Park today on the sidewalk, just chillin. It is so huge and so legit. The piece of paper in the bottom left corner is the size of an 8 1/2 x 11 piece of paper, just to help everyone understand the size. I wasn't able to tell if it was chalk or spray paint. It looked like chalk, but I touched it and it did not smear. So I'm not sure, but either way, it is amazing and beautiful.
