The painter and sculptor Martín Carral studied Fine Arts at the University of Barcelona. Carral has been painting gravitational waves for many years, an expanding universe of abyssal or sidereal pits, from the underground to the extraterrestrial.

Carral has shown his artworks especially in Cantabria and Catalonia, where he lives, but also in Slovenia, France, Portugal, Morocco. He is a regular at the main art fairs such as Arco and Arte Santander. Part of his artworks is found in museums and collections, including the Municipal Museum of Fine Arts of Santander. Art Museum of Torrelaguna, Madrid. J. Suñol Foundation. Barcelona. Marcelino Botín Foundation, Cantabria, among others.