Fortress I, 2012. Oil on canvas, 30 x 25 inches. Photo by John Harpring.

Fortress I, 2012. Oil on canvas, 30 x 25 inches. Photo by John Harpring.

Fortress III, 2013. Oil on canvas, 16.5 x 12.75 inches.

Fortress III, 2013. Oil on canvas, 16.5 x 12.75 inches.

Fortress VIIII, 2012. Oil on canvas, 24 x 18 inches.

Fortress VIIII, 2012. Oil on canvas, 24 x 18 inches.

Fortress X, 2012. Oil on canvas, 24 x 18 inches.

Fortress X, 2012. Oil on canvas, 24 x 18 inches.

Fortress XI, 2012. Oil on canvas, 20 x 20 inches.

Fortress XI, 2012. Oil on canvas, 20 x 20 inches.

Fortress XV, 2012. Oil on canvas, 12 x 12 inches.

Fortress XV, 2012. Oil on canvas, 12 x 12 inches.

Fortress XVI, 2012. Oil on canvas, 24 x 18 inches.

Fortress XVI, 2012. Oil on canvas, 24 x 18 inches.

Fortress XVII, 2012. Oil on canvas, 24 x 18 inches.

Fortress XVII, 2012. Oil on canvas, 24 x 18 inches.

Fortress XVIII, 2012. Oil on canvas, 24 x 18 inches.

Fortress XVIII, 2012. Oil on canvas, 24 x 18 inches.

Fortress XVIIII, 2012. Oil on canvas, 30 x 30 inches.

Fortress XVIIII, 2012. Oil on canvas, 30 x 30 inches.

Fortress XX, 2012. Acrylic on canvas, 24 x 18 inches.

Fortress XX, 2012. Acrylic on canvas, 24 x 18 inches.

Fortress XXII, 2012. Oil on panel, 14 x 1 inches.

Fortress XXII, 2012. Oil on panel, 14 x 1 inches.

Fortress XXVIII, 2012. Oil on panel, 14 x 11 inches.

Fortress XXVIII, 2012. Oil on panel, 14 x 11 inches.

Fortress XXXI, 2013. Oil on canvas, 14 x 11 inches.

Fortress XXXI, 2013. Oil on canvas, 14 x 11 inches.

Fortress XLIII, 2013. Oil on canvas, 30 x 24 inches.

Fortress XLIII, 2013. Oil on canvas, 30 x 24 inches.

Fortress XLVI, 2013. Oil on canvas, 24 x 18 inches.

Fortress XLVI, 2013. Oil on canvas, 24 x 18 inches.