There are several series of sketches – drawings mostly mixed media: pastel, pencil, ball pen, marker, and so on.

Oven-Baked Sketch 19 | Schizzo al forno 19, pastel and pencil on paper, 2015
Brown Paper Sketch 86 | Schizzo da pacchi 86, pastel, semi-soft pastel, pencil and ball pen on brown paper, 2015
Hungry Sketch 19 | Schizzo Affamato 19, pastel and ball pen on paper, 2015
Sketch for Portrait of Sailor | Schizzo per Ritratto di Marinaio, pastel and pencil on colored paper, 2015
Unleashed Sketch 294 | Schizzo scatenato 294, pastel, pencil and ball pen on paper, 2015
Sleepy Sketch 3 | Schizzo Addormentato 3, pastel, pencil and ball pen on paper, 2014
Unleashed Sketch 248 | Schizzo scatenato 248, pastel, pencil and ball pen on colored paper, 2014
Brown Paper Sketch 54 | Schizzo da pacchi 54, pastel, pencil and marker on brown paper, 2014
Unleashed Sketch 211 | Schizzo scatenato 211, pastel, pencil and marker on colored paper, 2014
Unleashed Sketch 208 | Schizzo scatenato 208, pastel, pencil and marker on colored paper, 2014
Sketch for Portrait of Bartender| Schizzo per Ritratto di Barista, pastel and pencil on colored paper, 2014
Sketch for Portrait of Barber | Schizzo per Ritratto di Barbiere, pastel and pencil on colored paper, 2013
Sketch for Portrait of Watchmaker | Schizzo per Ritratto di Orologiaio, pastel, pencil and ball pen on paper, 2013
Brown Paper Sketch 20 | Schizzo da Pacchi 20, pastel, pencil and marker on brown paper, 2013