Of course it is, that's why it is a NEW and UNKNOWN background. XD
I just managed to find the palettes for the sprites, by the way. I'll probably post a sprite sheet soon. Not that it is any different from the one I posted before.
Oh, and I found this text in the BETA demo folder:
///RayMan 2 PlayStation/version:01.12d/date:31 mai 1996/gravure:Vincent Greco/demande:equipe RM2 Sony/destinataire:equipe RM2 Sony/usage perso/derniere version/
"Demande: Equipe RM2 Sony" probably means that the Playstation ( SONY ) RayMan 2 ( RM2 ) team ( equipe ) wanted the prototype to use it in their game.
"Destinataire" is the team who the prototype went to: the same the Playstation ( SONY ) RayMan 2 ( RM2 ) team ( equipe ).
"Gravure" means "Writing", so Vincent Greco is probably the one who wrote version 01.12d of the prototype on a CD on May 31st, 1996.
... We need to find Vincent Greco.
EDIT ->
More info about him! He's a Development Studio Manager/Development Supervisor. He's credited in all Rayman games except Rayman 1, it seems.