I just started experimenting with bing. I added and subtracted from the prompt extemporaneously until I ran out of tries:
a tall and slender Caucasian woman with porcelain skin, very long flowing silver hair, blue eyes, and mouth open with vampire fangs, holding her large belly, standing in profile, wearing a red bodice with black lace and a fluted red skirt, and spreading large black angel wings
a tall and slender Caucasian woman with porcelain skin, very long flowing silver hair, blue eyes, and mouth open with vampire fangs, holding her large belly, standing in profile, wearing a red bodice with black lace and a fluted red skirt, and spreading large black angel wings