Great for Ark with buttery yellow house and the aqua blue water. Émile Hurtré, Architectural Project: Design for a wall decoration with peacock, cranes, and sunflowers, (via: the metropolitan museum of art)
Art Nouveau Staircase by Victor Horta -Hotel Tassel, Brussels. Typically of this period the interior has elongated, curved and flowing lines. These lines are seen in the tiles, the staircase and also on the walls.