What is a technique that hundertwasser uses?

Friedensreich Hundertwasser is known for his use of vibrant colors, organic forms, and irregular shapes in his architectural designs. One notable technique he employs is the incorporation of natural elements, such as plants and trees, into his buildings, promoting harmony between nature and architecture. Additionally, he often emphasizes the use of non-linear lines, rejecting straight edges to create visually dynamic and playful spaces. This approach reflects his belief in individuality and the importance of personal expression in design.