Anas platyrhynchos.
Detail, watercolor.

Balaenoptera physalus
watercolor 2002

Upper Paleolithic hunters.
Watercolor 2007

Anax imperator.
Watercolor and graphite

Anguila anguila,
watercolor

landscape in sepia,
watercolor
Guadiana river,
Spain and Portugal

Hippotragus niger variani
 (Sable antelope, male, Angola subspecie)
Graphite and gouache 2011

Canis lupus signatus.
(Iberian Wolf)
watercolor

Lacerta
shreiberi.
Watercolor

Picus viridis
(Iberian race)
Watercolor