Paul Optenkamp:
Day and night
Paul Optenkamp:
Dragon
Paul Optenkamp:
Relativity
Paul Optenkamp:
Tetrahedral planetoid
Paul Optenkamp:
Still life with reflecting globe
Paul Optenkamp:
Knots
Paul Optenkamp:
20170212_181542
Paul Optenkamp:
Print gallery
Paul Optenkamp:
Whirlpools
Paul Optenkamp:
Butterflies
Paul Optenkamp:
Escher
Paul Optenkamp:
Three worlds
Paul Optenkamp:
Moebius
Paul Optenkamp:
High and low
Paul Optenkamp:
8 Heads 1922
Paul Optenkamp:
20170212_181402
Paul Optenkamp:
Waterfall
Paul Optenkamp:
Liberation
Paul Optenkamp:
Curl-up
Paul Optenkamp:
Sun and moon
Paul Optenkamp:
20170212_181605
Paul Optenkamp:
House of Stairs
Paul Optenkamp:
Rind
Paul Optenkamp:
Rippled surface
Paul Optenkamp:
Doric columns
Paul Optenkamp:
Cubic space division
Paul Optenkamp:
Two intersecting planes
Paul Optenkamp:
Cube with magic ribbons
Paul Optenkamp:
Symmetry B
Paul Optenkamp:
Sun and moon
