Model Marathon Pt. I

The following images are from the product of 12 hours of drawing and painting yesterday at the Palette & Chisel's annual Model Marathon:

3-minute poses:

Brush pen on blotting paper.

Colored pencil on blotting paper.

Colored pencil on blotting paper.

Colored pencil on blotting paper.

5-minute poses, acrylic gouache on tone paper:

15-minute pose:

Sharpie marker on blotting paper.