Erwin Keustermans:
4 two by two colour gradations using 6 colours and wrist sized thin, long looping, blurred Ikat style.
Erwin Keustermans:
Red to blue gradations in rectangular lattice
Erwin Keustermans:
Red and blue, foreground and background, Ikat style
Erwin Keustermans:
Blue and yellow gradation, edge and center, black and white enhancing, blurred Ikat style, thin long looping scribbles.
Erwin Keustermans:
Color gradation, long thin looping, blurred Ikat style, blue and red
Erwin Keustermans:
Blue, magenta, green, yellow
Erwin Keustermans:
two times two colour gradations using 24 broad strokes of blue and green and 6 layers of long sweeping red and white lines.
Erwin Keustermans:
three by three two times two colour gradations using 6 colours
Erwin Keustermans:
blue to cyan, dark to light
Erwin Keustermans:
Layering of three colours.
Erwin Keustermans:
Layering of six colours
Erwin Keustermans:
Layering of six and a half colours
Erwin Keustermans:
blue to black gradation with isolated spots of flat colour in the inbetween region.
Erwin Keustermans:
sawtooth, pine rows, black and blue gradations.
Erwin Keustermans:
black and blue gradations, to white, horizontal versus vertical.
Erwin Keustermans:
black and blue gradation, scribbled and smudged.
Erwin Keustermans:
Cyan to white, red to black, grey in between.
Erwin Keustermans:
White to cyan, red to black, black to cyan, red to white gradations, hard edged middle disk.
Erwin Keustermans:
Seven colour gradations, with radial and perpendicular stroking.
Erwin Keustermans:
Seven colour gradations, rectangular grid, horizontal and vertical stroking combined.
Erwin Keustermans:
Constant saturation
Erwin Keustermans:
five colours around the edge gradating to a mix in the middle; additional white scribbling
Erwin Keustermans:
five discontinuous colours around the edge gradating to a mix in the middle; additional white scribbling
Erwin Keustermans:
a number of curves forming faces in which the edges are different colors gradating to a mix with white or black and on the whole gradating to grey on the edges, with highlights scribbled in white
Erwin Keustermans:
8 colours to 4 colours to 2 colours (but not to grey yet)
Erwin Keustermans:
8 to 4 to 2 colours, drawn in black and blue.
Erwin Keustermans:
black and blue layered into different shapes
Erwin Keustermans:
6 colors scribbled into gradations, black drawing showing the different directions.
Erwin Keustermans:
medium sparse brushing with sweeped, interlacing envelopes
Erwin Keustermans:
four colour mix, drawn in black and green