Metamorphosis
Gardens
Triptychs
Hands and Feet
Faces
Red Umbrella
A Net of a Wedge
Private Property
Ground Level and Zoom
Not Round Here
and other drawings
DRAWING PROJECTS
Mary Yacoob and Cally Trench
Drawing Exchange
Hagley and Trench's
Beautiful Mathematical Puzzles for Pleasure
Cally Trench and Tineke Bruijnzeels
365 Drawings 365 Dessins
External website
Cally Trench and Tineke Bruijnzeels
2 x 366 Drawings
Cally Trench's homepage