Omar Ba's "Chien, herbe, petrôle ou fruit" exemplifies the artist's characteristic approach of layering multiple media on humble cardboard to create rich, textured compositions that invite poetic interpretation. The work combines crayon, gouache, Indian ink, and acrylic to build an abstracted visual narrative where the title's seemingly disparate elements—dog, grass, oil, and fruit—exist in ambiguous relationship to one another. Ba's technique and choice of corrugated cardboard as support reflect his interest in materiality and accessibility while challenging conventional notions of what surfaces are worthy of serious artistic attention.