Black and White Op Paintings

Richard Allen, Black and White Op paintings, 62cm x 62cm

Richard Allen, Black and White Op paintings, 122cm x 122cm

Richard Allen, Black and White Op paintings, 91cm x 91cm

Richard Allen, Black and White Op paintings, 76cm x 76cm

Richard Allen, biro and pencil on paper, 38cm x 45cm (total size), 20cm x 20cm (image size)

Richard Allen, pen and pencil on paper, 29cm x 45.5cm (total size), 22cm x 25cm (image size)

Richard Allen, pen and pencil on paper, 38cm x 46cm (total size), 18cm x 18cm (image size)