Differences between Season 1 & 2

Gumball is smaller, & his eyes are smaller & rounder. I also think his ears are bigger.
Penny is smaller & curvier, she is a darker shade of brown, & she sounds lower.
Darwin's eyes are rounder & he is kinda bright red now.
We get to see Hector's face this season.
All the backgrounds are a slight shade of pink.
Tobias isn't as colorful as he was in Season 1, & he is now an inspiration of Peter Griffin.
Everyone's outline is thicker. & When characters close their eyes this season, they are thicker.
The characters look more fan made.
Gumball & Nicole were once bright blue but now they are dark blue. They also havre thicker, sharper & smaller whiskers.
Darwin's shade on his bottom turned red.
Gumball's mouth moves differenrly.
Richard sleeps differently.
Everyone's vains are more visible when they're angry.
The show is not starting to make much sense.
Apparently, Everyone's eyes have gotten rounder.
All the Anime-esque animation is starting to appear more. Now things have gotten more anime-like than nonsense-like.
Gumball is nowhere as near as respectful has he was in Season 1.
Nicole looks like a white person when she's angry. In fact, throughout the whole show, I always thought the wattersons have looked alot & resembled white people with their eye, face, & body designs.
The watterson family is getting more messed up.
The character's got a new facial expression.