"Van Gogh’s 'The Harvest.' In the original, what should be wheat is an orange field; above we have green lines mixed with solar light. In the protanomal simulation, the wheat shade backs up the overall presence splendidly and has given depth to the scene. With the reduced sun, I feel that the twilight of autumn is reproduced."
Left: Original / Right: Protanomal simulation (60%)
See also: a Chromatic Vision Simulator in iPhone app form.