I am an upcoming fashion designer and I am in need of a slim thick mannequin. I feel like it brings the designs out more when the mannequin has a great shape. All the ones I have found are super skinny.
Perhaps the expression you're looking for is realistic, anatomically correct, custom, if only to escape the disney princess zone (whilst hoping it doesn't venture outside of proportion, I'm not sure). But some mannequins seem to carry quite the price tag, so an upcoming fashion designer might make do with what they can get, construct or modify.