Yes, it is one of mine. It gets its two-color petals from a Whirlgig parent. Besides two-color and three-color petals, Whirligigs have several other traits that are of interest to me. Some of them have petals with a "toothy" effect on the petal ends, and by crossing and selecting between toothy parents, I have been able to get zinnia blooms like this.
And toothy zinnia blooms like this.
And some with extremely refined blooms like this.
However, I like to cross Whirligigs with large cactus flowered zinnias to get specimens like this.
There are so many different kinds of zinnias that the number of possible crosses you could make is, well, astronomical.