because it kept the individual skills of the animators from being optimized. Due to their independent backgrounds, the animators were accustomed to working at fast paces, and despite their small numbers, each phase of production was able to be completed within a short period of time. Still, schedule and budget restraints led the filmmakers to enlist Prana Studios in Mumbai, India to perform lighting and compositing. The filmmakers found that the most difficult aspect of producing the film independently was their inability to fix all of the mistakes made in the film's animation. Todd Edwards explained that "it becomes an equation: 'I have 10 things that I would like to change in this shot. I have the time and the budget to do three. Pick those three and then let's move on.' And that was hard to do". Another obstacle during the film's production, according to Cory Edwards, was putting fur on the animal characters. It took the filmmakers three and a half years to crack the code to do so perfectly, forcing themselves to redesign and reanimate several aspects. Knowing that they could not match the quality of other computer-animated films, the film was instead designed to imitate the look of stop motion. Cory Edwards cited Rankin-Bass as an inspiration and explained, "If we approach our look like that—photographed miniatures in stop motion—and if that nostalgia resonates with our audience as far as that look, then we're not going to shoot ourselves in the foot trying to put every freckle and hair on photoreal creatures." Edwards contrasted the technically innovative, but critically panned 1986 film Howard the Duck with the simple, but beloved puppet character Kermit the Frog to illustrate to his crew the importance of well-written, likeable characters over technical quality. Distancing the film from what producer Preston Stutzman called the "candy-coated, brightly colored pastel world[s]" of other CG animated films, an attempt was made to bring an organic look to the film, and “dirt” was rubbed into the colors. The Nightmare Before Christmas was cited as an inspiration for the filmmakers to try to bend the characters' shapes into extremes, and many other choices unconventional to computer-animated films were also made. For example, one of the Woodsman's eyes was made bigger than the other, and Red was given only four fingers, so as to make her look more like a doll. Producer Katie Hooten explained that "CG