The whole 2D team used many tricks and techniques to bring all the characters to life, from small details like blinks winks, smiles, jaw drops, sweat, and even paint dripping. Seamlessly removing the puppeteers was more difficult than a normal studio shoot as the addition of realistic light changes for the passing scenery in the windows. 

These were a bit of a jigsaw from a colouring point of view, lots of elements to put together to create the final images, but the result is very pleasing.  Joe and I spent a lot of time finessing each part of the puppets, using multiple layers  to get them to look just right. The final grade stage came after the bulk of the VFX work was done and the puppeteers were removed, this seemed to really breathe life into characters allowing their personalities to come through.”