Carrena has been exhibiting his work since 1979. The theme of his work is based on offering a new perspective, using modern techniques, on the rich signography of the ancient peoples of South America and the Argentine Patagonia. He works in series, where the image varies depending on the materials used. Another key theme for the artist is the universe and the nature in which we are immersed, as well as his exploration of new mediums: from photocopies and electrographic prints to photography and digital art.