Even if you draw the same thing, or even if you scan the same piece of paper again, it will be different.
But you will be closer to the answer, that's the weakness. While by rolling a fair dice, there's no human factor involved, meaning that if you tried a combination and failed, you have to restart from 0. Especially with the recognition and the abrupt development of
neural networks, I wouldn't even want to bother with "random images".