In the 1970s, Nivola returned to easel painting: a way of thinking about space, reflecting on the relationship between a flat surface and a three-dimensional image. The series of large geometrical figures is characterized by warm and dull tones - in vogue in the 1970s - and by the ambiguity between figure and background: the volume of the figures is denied or accentuated from time to time by the application of the color that passes from one plane to another. 'other. In this case too, the artist's interest is in the definition and perception of space.