A buddy of mine created a character called Erin Storm for his series Perfect Storm. Eventually, we collaborated on her stories, and I fleshed out her universe and backstory. I did a pinup of her for the back cover of the proof-of-concept book we produced. I wrote it, and Rob drew it, Mark Waid liked it.

When I showed people the Illustration, they all thought it was Black Widow. So, we redesigned Erin to avoid confusion, and I recreated the piece to be Black Widow.

Black Widow copyright Marvel Comics