Real materials 10:
Bas Relief Woodcarving (2002) by Phil Allin based on "Symmetry Drawing C" by M C Escher
Phil Allin tells us,
"This is a large wall decoration (7-1/2 ft x 4 ft) carved in redwood based on Escher's
"Symmetry Drawing C".
It's built up from four 2 inch x 12 inch redwood boards and reinforced across the back with three-fourths inch x 4 inch strips.
I stained the dark figures with walnut stain and used a white wash on the light figures. It was done in 2002."
You can see the original Escher drawing on which this (excellent) woodcarving is based at
The specific drawing is this piece.
It's not labeled, but the resemblance is unmistakeable.
Interestingly, Allin's work seems to be a slight improvement on Escher's design:
Allin has removed the harshness of the points at the "elbows" of the wings and at the crests of the birds' heads.