I did quite a bit of 3D modeling for the Shanghai sequence. I collaborated with Nic Henderson on this set. The first image is the aquarium interior establishing shot which is based on Nic's 3D set that he designed. Below is the version of the Shanghai dock I designed before Nic took over to add his aquarium set.
I also did various props for this sequence. In an earlier version of the story the penguins went to Hong Kong instead which is why there are designs for the hong kong sampan boats and store fronts. Unfortunately those pieces never made it into the film. If you watched the movie you might recognize the turquoise colored boat that was used in the sequence where the penguins hijack the vtol of the North Wind chasing after the bad guy.
Hong Kong Store Fronts