It does take a little persistence, and you don't always end up with what you were after, either. I started with "Denise as a steampunk gnome", hoping to get close to Denise's tavern character, and got a lot of weird stuff, including the garden gnome figurine above.
Out of the 30 other images generated, there was one that wasn't a gnome at all, and the face was all wrong, but it caught my attention because the armor was cool and the body was smoking hot: