Prompt: Create an innovative and sustainable exterior facade design in Perspective view for a Art Gallery featuring a Organic style, constructed primarily with Recycled Materials and incorporating highly specific details such as Hanging Gardens all set in a In the Heart of a Rainforest with Dappled Morning Sunlight environment, and optionally credited to Starchitect Santiago Calatrava for added inspiration. Ensure you specify only the essential design elements for the perfect visual representation of the exterior of the building.