It seems obvious that he utilized some form of hand-pressed monotype in many of his drawings. Perhaps, pressing wet inks or watercolor from paper to paper or from table (or glass) to paper. The fluid markings and delicate distinctive rivulets are characteristic of watercolor or ink hand-pressed monotype. It seems as if he looked into this configuration of markings and then fleshed out something that he saw within them in a more deliberate way. (conceptually something like Chinese scholars rocks). I do this type of simple hand-pressed ink monotype with my students to help them unleash locked powers of self-expression and draw forth unconscious imagery. Anyway, that's a technique I observe in many of Hugo's drawings.
