His works are characterized by the marked lines of the horizon and by an immensity of space that the artist decides to punctuate with natural or architectural elements he places in contrast to the initial landscape. The challenge which the artist brings to the viewer is almost spiritual: the reading of a vague and celestial image, though marked by a component that concedes objectivity. Spectators relate to elements that transport them to other subjective realities and at the same time, lead them to identify with the artist. In the Santa Clara-a-Nova Monastery, Arruda presents three paintings, a light installation and an alabaster sculpture imagined in his previous journeys to Portugal.