Some more of a favourite subject. This time the skulls are from a sheep (I think), and a fox (possibly). Whatever animals they used to be they offer beautiful mini-landscapes to sketch, with lots of hills, cliffs, valleys and caves. Their natural curves, single plane of symmetry and complex shadows combine to make a  lovely tabletop challenge.

Lexington grey in fountain pen and water-brush, dilute Brown 41 in water-brush, water-colour, A5 – 30 minutes

Noodlers Brown 41 in fountain pen and water-brush, dilute Lexington grey and Platinum Blue Pigment ink in water-brush, watercolour, A5 – 30 minutes

White Gelly roll pen, dilute Lexington grey in water-brush, water-colour, A7 – 10 minutes