Spectre ink drawing

Spectre, 14 x 14 inches, Pigma Micron black ink pen on Strathmore 100% cotton bristol board.
Pigma Micron black ink pen on Strathmore 100% cotton bristol board.

Am working on a series of circular drawings. Each line plot gets wider in diameter. They all revolve around a center point. The beginning and end join together to make a circle shape.

On my shop.