50 years ago even bad cartoon art was good.This was a golden-age of off-model merchandise.
From 1970 on, off-model looked like this. Look at the humans that this artist thought he was doing in the Looney Tunes style.
Off-model from the 50s looks better than on-model today. Here's on-model from the 50s: Chuck Jones style Here's almost on-model from 1947: Friz style On-model today: Old toys: Modern toys: Post 1970 WB art: