How do i do it?

This started out easy but became more and more difficult as i went along. AI didn't understand what the underside of bleachers looked like so I had to take a photo and add an anime style filter to it. i cut out the characters from the creations here, but they didn't fit together, so i used the lower half of one character and the top half of another to get the guy sucking. then i had to replace both their right arms. i painted the right arm of the standing dude, and cut a right arm out from another creation for the sucking dude. I hand painted the jock strap because AI rarely gets those right. Then i manually painted in shadows and scaled up their faces in another AI and then reduced them back down to fit and composited the new faces in.