This just in from Pete Merolo:

[Here's a great production background that I recently purchased from a collector that has owned it from the early 1980s.

This is a very rare and beautiful artwork.

It's an 11'' x 50'' production background from 'Blue Bayou', create originally for 'Fantasia' , this is the full scene of the Bayou that the Storks land in.]

The "Blue Bayou" sequence was originally planned and animated for Fantasia on the music Clair de Lune by Debussy. It never made it into Fantasia. It was later reedited, set to the music Blue Bayou by Bobby Worth and Ray Gilbert and released as part of Make Mine Music in 1946.