Kind of entitled @georgecreeper. Maybe if you drew or commission said work you could dictate it's content, but you didn't, so maybe try to not question the artist's artistic integrity?
At the end of the day they're drawing for themselves, not you. Also hate to break it to ya, but Futa is sometimes Afrobull's thing, and he doesn't really discriminate. Strap on, not so much. Sorry, but you're going to have to scratch the itch for your very specific kink elsewhere.