Each is packed with detail, suggesting keen observation of the natural world.
One can make out the difference among them by keen observation of the sculpture.
Her two major contributions to fashion resulted from chance and keen observation.
Ms. Weber brings more than keen observation to her work.
His work was noted for its keen observation and literary skill.
His keen observation of the human condition led him to be a serious poet.
Her influence is apparent in his keen observations and commitment to form.
Her keenest observations on the nature of horses come when she tries to see the world through their eyes.
But the author's keen observations aren't limited to himself.
Above all a policeman needed keen observation and an excellent memory.