Diamonds

Diamonds
markers on paper
14"x11"
$25

[Image description: white background framed in black with a diamond centered within a larger diamond; the interior is a grid of red, the exterior is vertical blue lines; outside are the vertical halves of other diamonds with vertical blue lines and the horizontal halves of diamonds with horizontal green lines, all with grids of red centered]

Christmas Tree

Christmas Tree
markers on paper
11"x14"
$25

[Image description: white background with linear triangle in black, filled with linear Sierpinski gasket-style tree in black, red, green, and blue; diagonals in red and green indicate the tree pattern, while diamonds in red, green, and blue indicate ornaments]

Knotted

Knotted
charcoal on paper
14"x11"
$25

[Image description: white background with black and white charcoal drawing of a four by three interlaced knot shaded to show the overlapping of each line]