I've seen a lot of photographers use the sun to help give their pictures a warm yellow/orange haze. I've witnessed this being done with no flash at all. I cannot seem to duplicate the results though. My shots seem to just have a white haze instead of the warm colors. Can someone offer some techniques to achieve this result? What metering is best? Where do you meter? Do you intentionally overexpose/underexpose after metering? Here's some samples of what i'm trying to achieve. Thanks in advance.