Relating paintings to each other and modifying such relationships over time is a feature of Oru's work. Painting as the raw material of Painting itself. In the following examples, we see (in order of presentation) "Abacateiro I" that served as central element for the development of an external in the central part and which was later made the painting that contains an eye ("Ela"), presented in the exhibition COMO SE CHAMA (2001) in Lisbon as an "ecliptic" work, which the visitor could cover or not with "Abacateiro I". Later, "Abacateiro I" received an external one (Pinacófago) and "Ela" suffered an overpainting and happened to be called "Ramagem Negra".
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