To the statement that a full sun day bleaches out color I offer some images of the same wood now a week later. Maybe they won't show that much of a difference, see if you can tell. Of course there are a few more leaves.

These photos show how the color on a cloudy day differs from the bright morning sun and how it changes the landscape, this would be for the eye of the painter perhaps useful, perhaps not, by taste, some may like to paint the effects of bright light, as it can be more exciting for an image in paint. I thought it might be interesting to see what I suppose is a difference in mood. Everyone has an approach or an idea for what attracts them. Sometimes preconceptions play a part in what people do and how they live their lives. I think it perhaps healthier to teach art with an open mind, eye, and heart.