It's the color (blue) of the melancholy, or rather of the "sweet melancholy", accompanied by mainly cold colors (even the yellow becomes cold, almost suffocated by the gray). The atemporal and aspatial dimension of Natalia (Jacquounain) is perfectly represented by this chromaticity, which is then reflected in the absent glances, in the anthropomorphic rocks, in the indefinable atmospheres and yet hiding an exciting heart, that of the artist.