Old tree in Picos de Europa. (Pencil on paper 30 x 40 cm)
Old tree in the Picos de Europa. (Brown crayon on paper 30 x 40 cm)
Dead tree (Brown crayon on paper 30 x 40 cm)
Old chestnut tree in Picos de Europa. (Brown crayon and watercolour on paper 30 x 40 cm)
Rock in sunlight: Juan Roble, Picos de Europa (Watercolour, 30 x 40 cm).
Study of a path in the mountains with trunk of an old tree. (Brown crayon on paper, 30x40 cm)
Study of a tree, Picos de Europa (Watercolour 30 x 40 cm)
Old farmhouse. (Pencil, 30 x 40 cm.)
Pic Uriellu (study in brown pencil on paper, 30 x 40 cm).