@cedricgo Thank you for your feedback!! Yeah I totally agree with your reasoning, and so I decided to go with the 4th, so I could do something funny which also really relate to the Halloween theme.
This is my progress so far:
Tomorrow I plan to finish the base drawing and setting the mood, possibly start painting too. I want to add some references to the other heroes inside the cauldron, maybe avoiding to make it look like she cooked them (even if a friend told me he would dig that lol).