Rubela Dávila is a Peruvian artist who belongs to the 60s generation when the visual languages influenced by neoplasticism and “Hard Edge” from the New York school of abstraction were explored, displacing the limits of painting, sculpture, engraving and action, making their productions with vanguard proposals and transgression with the academicisms and aesthetic formalists of the time. Hence many of the productions of those years were called by the critic Juan Acha as "non-objectualist art". “Estructuras en Azul” is a 1968 piece that presents a chromatic game obtained by the internal unevenness of the circular fields that in its relation with the variations of blues and the illumination of its set, achieves light shadows that move from a circle to another, generating a fine mobility, similar to the lunar phases.