Artistamp / faux postage MMSA: (almost) black and white flowers

The second sheet I sent in was a set of photographs that I took myself of (mostly) white flowers in the garden (except the dogwood, which is a few blocks away from me), altered in photoshop. They aren't 100% black and white, there's a touch of purple and green here and there. These are printed onto large label paper and slit-perforated.