Spiral galaxy fine ink study
FinelinerMedium

One crescent moon with a few broad shallow crater marks, no face, stars or scenery. Practice form, overlap and selective shading in black and gray marker.
Draw the outer moon curve and inner crescent edge.
Place a few broad crater ovals along the visible surface.
Use selective interior marks and local shadow groups to explain the overlaps. Keep the lighter planes open rather than shading every surface.
A small thing to tryKeep the two crescent tips joined to the outer curve.