Ugarte did an intervention on the hotel's walls, tracing architectural details with charcoal. He picks out, outlines, emphasizes or interacts with existing architectural elements—corners, edges, structural lines, planes of walls, transitions of materials, thresholds, windows, etc.—and uses them as material, frame, or locus for the intervention. They shift how people perceive architecture; by drawing attention to what typically is overlooked (corners, edges, light/shadow interplay), his interventions make viewers more aware of space, shape, and the built environment. They test the boundaries between art and architecture: his works are not just placed in architecture—they are in dialogue with it, co-opting the architectural elements themselves.