I think we see many foils of certain personalitoes:
Tyger is ADHD, Excited and Lively and eternal optimist. Who is the opposite of Pooh who is Placid, Slow, and of gentler Demeanor.
Piglet is Tyger’s opposite, full of trepidation. While Igor is a total pessimist to Tyger’s active optimism, and Pooh’s passive optimism. Rabbit is similiar to Piglet, but Rabbit is a proactive pessimist and worrier, while Igor is a passive pessimist, doesn’t worry, is just depressed and defeated.