is the final product for the film. This is the socalled "Abramsprise". The nacelles aren't freekishly huge.
At most, that drawing is an artist's first rendering. And actually it's the other way around. It's not a male spaceship:
Although this isn't the final product for the movie, it would seem comically fitting in a way. Kirk has an obvious libito, and he's also said to be married to the ship. This picture would mean that Kirk's an @$$man.