Designing Finn's face was one of he most difficult tasks I have done during my pre-production stage. From the first one I had, I came up with numerous studies for Finn's final head look. At first I tried out some cartoony stuff and mixed them with a creepy feel. But towards the end of designing this part, I realized that Finn needs a stronger facial design that could deliver his emotions which is one of the core factors of this story. Therefore, I came back to my original pegs which some were 'Corpse Bride' by Tim Burton and Death Note's 'L' and came up with the final design of Finn.