Orientalist women are also very curvy, I've noticed.
Discussion
Social norms, diet and traditions can be contributing factors here.
The AI women are all built like models: 8 feet tall and scrawny-looking.
Look at where here hip is in comparison to the door frames. This is typical. The woman are stretched out, like that.
Compare that pic to what a human male from that time (early 1900) period really painted.
She THICCCCCC.