Over Twilight — Gallery CanvasA boreal treeline silhouetted against a twilight sky the dark forms of spruces and dead snags in the foreground, the distant hills a blue purple band, the sky above fading from pale yellow at the horizon through blue to the first grey of approaching night. This 1990 coloured pencil landscape is one of Glen's most purely atmospheric: no animal, no foreground detail just the shape of the north at the end of a day. The treeline silhouette is a