Composition in black and white. Rapid and overlapping lines. Study representing beast, occupying the central area of the support against a plain background. The beast is standing, facing; has slightly fallen head back, eyes, ears and nostrils suggested large and huge open mouth with fangs bared. It has raised the on the right front leg as if to attack, with claws, which is something in front. The other legs are resting on the ground with the suggested claws. The animal's body appears to be spotted, looking to the right, curved tail. Plain background, with slight scribbles on the right next to the beast's legs, suggesting projected shadows.