Animation Treasures continues to recreate excellent animation backgrounds: here's a pair from Warner Brothers' Bugs Bunny cartoons, specifically the Chuck Jones-directed "Barbary Coast Bunny" (snippet pictured) and the Friz Freleng-directed "Knighty Knight Bugs." Excellent stuff.
For more of the work regarding animation background, check out our previous post here.
Update: Animation Treasures is sadly no more, but Animation Backgrounds has a number of animation backgrounds on it. You can find them here.