Armando's lithographs are characterized by powerful, expressive forms and a restrained visual language. Through the use of dark lines, strong contrasts, and a minimalist approach, he created works with an intense and often contemplative atmosphere. Many of his lithographs depict landscapes, trees, or abstract forms that reflect recurring themes of memory, history, and the human condition. Through the lithographic medium, Armando successfully translated his distinctive painterly style into graphic works of remarkable emotional depth and expressive power.