Wild Human 3 Charcoal on paper, Drawing 2004, Cat. No. 329, 50x70cm (20x28")

Wild Human 2 Charcoal on paper, Drawing 2004, Cat. No. 328, 50x70cm (20x28")

Wild Human 1 Mixed technique on paper, Drawing 2004, Cat. No. 353, 50x70cm (20x28")

Venice 3 Pastel on paper, Drawing 2009, Cat. No. 784, 100x70cm (39x27")

Twist Mixed technique on paper, Drawing 2003, Cat. No. 137, 100x70cm (40x28")

The Virgin and Child with St. Anna - LEONARDO Mixed technique on paper, Drawing 2005, Cat. No. 437, 137x100cm (54x40")

Tears Ink on Paper, Drawing 2009, Cat. No. 697, 75x50cm (30x20")

Surrealism 3 Pastel on paper, Drawing 2003, Cat. No. 271, 100x70cm (40x28")

Surrealism 22 Pastel on paper, Drawing 2003, Cat. No. 280, 100x70cm (40x28")

Sunflowers 4 Mixed technique on paper, Drawing 2011, Cat. No. 886, 45x60cm (18x24")

Study of a Human Mixed technique on paper, Drawing 2004, Cat. No. 426, 30x40cm (12x15")

Study of Women Hands - Cornelius Jonson Charcoal on paper, Drawing 2011, Cat. No. 997, 20x30cm (8x12")

Study of Men?s Head for the Battle of Anghiari - LEONARDO Pastel on paper, Drawing 2006, Cat. No. 503, 100x70cm (40x28")

Study of Man's Head 20 Pastel on paper, Drawing 2009, Cat. No. 758, 60x50cm (23x19")

Study of Lily - LEONARDO Pastel on paper, Drawing 2005, Cat. No. 462, 20x30cm (8x12")

Study for a Sculpture Pastel on paper, Drawing 2002, Cat. No. 6, 100x70cm (40x28")

Still Life 4 Pastel on paper, Drawing 2003, Cat. No. 277, 100x70cm (40x28")

Sprays of Oak Leaves and Acorns - LEONARDO Pastel on paper, Drawing 2005, Cat. No. 460, 20x30cm (8x12")

Sketch 9 Charcoal on paper, Drawing 2003, Cat. No. 45, 100x70cm (40x28")

Sketch 8 Charcoal on paper, Drawing 2003, Cat. No. 44, 100x70cm (40x28")

Sketch 5 Charcoal on paper, Drawing 2003, Cat. No. 29, 50x70cm (20x28")

Sketch 4 Charcoal on paper, Drawing 2003, Cat. No. 28, 50x70cm (20x28")

Sketch 35 Pastel on paper, Drawing 2003, Cat. No. 290, 100x70cm (40x28")

Sketch 33 Pastel on paper, Drawing 2003, Cat. No. 285, 100x70cm (40x28")

Sketch 28 Mixed technique on paper, Drawing 2003, Cat. No. 146, 100x70cm (40x28")

Sketch 27 Charcoal on paper, Drawing 2003, Cat. No. 82, 100x70cm (40x28")

Sketch 24 Charcoal on paper, Drawing 2003, Cat. No. 79, 100x70cm (40x28")

Sketch 23 Charcoal on paper, Drawing 2003, Cat. No. 78, 100x70cm (40x28")

Sketch 22 Charcoal on paper, Drawing 2003, Cat. No. 77, 100x70cm (40x28")

Sketch 21 Charcoal on paper, Drawing 2003, Cat. No. 36, 100x70cm (40x28")

Sketch 15 Pastel on paper, Drawing 2003, Cat. No. 294, 100x70cm (40x28")

Sketch 14 Pastel on paper, Drawing 2003, Cat. No. 293, 100x70cm (40x28")

Sketch 10 Charcoal on paper, Drawing 2003, Cat. No. 46, 20x30cm (8x12")

Self-Portrait - LEONARDO Pastel on paper, Drawing 2005, Cat. No. 459, 20x30cm (8x12")

Royal Gardens Charcoal on paper, Drawing 2008, Cat. No. 601, 50x70cm (20x28")

Renaissance Drawing - Leonardo 2 Charcoal on paper, Drawing 2011, Cat. No. 895, 22x27cm (9x11")

Renaissance Drawing - Leonardo 1 Charcoal on paper, Drawing 2011, Cat. No. 894, 30x45cm (12x18")

Portrait of a Woman 1 Pastel on paper, Drawing 2003, Cat. No. 272, 100x70cm (40x28")

Portrait 8 Pastel on paper, Drawing 2003, Cat. No. 284, 100x70cm (40x28")

Portrait 3 Charcoal on paper, Drawing 2003, Cat. No. 40, 100x70cm (40x28")

Omega Chair 5 Mixed technique on canvas, Drawing 2003, Cat. No. 215, 100x70cm (40x28")

Old Man - LEONARDO Pastel on paper, Drawing 2005, Cat. No. 451, 20x30cm (8x12")

Nude 97 Mixed technique on paper, Drawing 2003, Cat. No. 143, 100x70cm (40x28")

Nude 76 Mixed technique on paper, Drawing 2003, Cat. No. 142, 100x70cm (40x28")

Nude 65 Pastel on paper, Drawing 2003, Cat. No. 270, 100x70cm (40x28")

Nude 64 Mixed technique on paper, Drawing 2003, Cat. No. 141, 100x70cm (40x28")

Nude 52 Charcoal on paper, Drawing 2003, Cat. No. 35, 100x70cm (40x28")

Nude 5 Mixed technique on paper, Drawing 2003, Cat. No. 147, 100x70cm (40x28")

Nude 49 Charcoal on paper, Drawing 2003, Cat. No. 90, 100x70cm (40x28")

Nude 48 Charcoal on paper, Drawing 2003, Cat. No. 89, 100x70cm (40x28")

Nude 46 Charcoal on paper, Drawing 2003, Cat. No. 87, 100x70cm (40x28")

Nude 45 Charcoal on paper, Drawing 2003, Cat. No. 86, 100x70cm (40x28")

Nude 41 Mixed technique on paper, Drawing 2003, Cat. No. 139, 100x70cm (40x28")

Nude 40 Charcoal on paper, Drawing 2003, Cat. No. 83, 100x70cm (40x28")

Nude 39 Charcoal on paper, Drawing 2003, Cat. No. 75, 100x70cm (40x28")

Nude 38 Charcoal on paper, Drawing 2003, Cat. No. 74, 100x70cm (40x28")

Nude 37 Charcoal on paper, Drawing 2003, Cat. No. 73, 100x70cm (40x28")

Nude 36 Charcoal on paper, Drawing 2003, Cat. No. 72, 100x70cm (40x28")

Nude 35 Charcoal on paper, Drawing 2003, Cat. No. 71, 100x70cm (40x28")

Nude 33 Charcoal on paper, Drawing 2003, Cat. No. 69, 100x70cm (40x28")