Character Illustrator for Dark Romance Series

Seeking an illustrator to create character art for my dark romance book series featuring realistic vampires and vampire couples (no stereotypes or cartoons, just beautiful immortals) in historical and contemporary settings. This is art that would be used to create promotional materials specifically for social media, promotional swag and potentially interior art for upcoming book.

I am looking for a realistic style, with maybe a touch of fantasy. I need character/couple portraits within detailed settings that might mirror scenes from my books. Ideally, I want someone who I can work closely with, so good communication/collaboration skills needed.

Helpful if illustrator enjoys/knows the dark fantasy romance genre and is comfortable with MM, MF, and MMF couples. I don't require erotic art, but some pieces might venture into sensual/suggestive couple art.

There are currently three books in the series and I would like to start with 4-5 pieces for each book.