Look at the hair in the scene where they're in the ocean in Incredibles 1, and... pretty much any comparable scene in 2. The hair in 1 looks almost like plastic

Look at the hair in the scene where they're in the ocean in Incredibles 1, and... pretty much any comparable scene in 2. The hair in 1 looks almost like plastic; in the sequel (or, even better, Moana), the wet hair looks much more lifelike.