The Barcelona-born muralist is Joan Miró, also known as SERT. He was a Spanish painter, sculptor, and ceramicist born in Barcelona in 1893. He was a leader of the Surrealist movement and his work has been interpreted as a symbolic language of the subconscious. His works are characterized by bright colors, abstract shapes, and childlike figures. He is best known for his large-scale murals, which often feature abstract shapes and vibrant colors.