Crimson Cattleya Orchid — Framed Piece Frame:Black This 1979 watercolour is one

This 1979 watercolour is one of Glen's most celebrated and widely collected paintings: the composition captures the wolves' working intelligence — the partnership

A pair of Hooded Mergansers on rippled water — the male in foreground with his extraordinary black-and-white crest fully raised

the geology of the cliff — the horizontal banding

is a sight most people have only glimpsed from a distance

This is Glen working at the intersection of scientific accuracy and atmospheric poetry — the cheetah's anatomy is exact

Crimson Cattleya Orchid — Framed Piece Frame:Black This 1979 watercolour is oneA Crimson Cattleya Orchid in full bloom the magenta pink petals large and ruffled, the orange yellow throat a burst of warmth at the centre, the pseudobulbs and strap leaves rendered in the yellow green of a well tended plant. This 1994 coloured pencil study is among Glen's finest botanical works: the flower's complex structure rendered with complete precision, the petals' translucency suggested through layered coloured pencil without losing their