I probably would have this same idea of how my brain is working on pumpkins, even if I had never seen the movie "Inside Out."
Brain area 1: "All right, I need to use a two-dimensional medium to create an image that gives the illusion of three dimensions. And people have to be able to tell what it represents."
Brain area 2: "OK, I will work with you on this. I have some technical information on your materials."
Brain area 3: "Hold on. You are trying to create the illusion of the 3D image, but you are working on a rounded, lumpy surface. So the surface is already 3D."
Brain area 1: "Huh, you're right. Brain area 3, you be in charge of moving the head around and shifting the eyes and getting that parallax-stuff going to compensate for distortion."
Brain area 2: "This is effed up. I bet you could just use a can lid to draw circles."
Brain area 1: "Store that for later, area 2. Just keep track of the paper towels and rubbing alcohol and stuff. Hey, area 3, let's draw a long rectangle with a little bit of single-point perspective."
Brain area 3: "But this is a curved surface…and you want to taper it downwards, even though it is on the upward curve of the spherical pumpkin? Brain area 2 is right, this really is effed up."
Brain area 4: "Hey, what are you guys—oh, shit. I don't even want to know what's going on here. I'm going back to bed."
Brain area 1: "I drew the rectangle while you weren't looking, Brain area 3. Tell me how you think it looks."
Brain area 2: "I have some alcohol, want me to wipe it out..?"
Brain area 3: "Huh, that might work. Keep going and I will re-evaluate."
And so it goes as a committee process for three to seven hours.