I really like the colored-haze in this photo:
How do I do it in Lightrooom?
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This isn't a Lightroom effect, it's just the effect of shooting during Golden Hour (an hour or so before sunset in this case, I think), and shooting into the sun: result, warm, soft sunlight. The little bokeh dots floating around appear to be dandelion seeds in the air catching the light.
I'd say the light source while was behind the subject, the white balance seems to be shifted to the warmer side.
Although you can't capture the true beauty of sunset light you can do a somewhat realistic effect in Lightroom. You need to scroll down on the sidebar until you reach split-toning. In there you should see sliders. You then set the highlights to a gold-ish colour (you can tweak this) change the balance to something in the region of 60-100. and the shadows to a grey-blue colour. Tweak to your liking. I also like to add a radial filter and move it to where the light source would be, invert it, and apply a slightly warm temperature and increase the exposureslightly. Thus making a somewhat nice glow around the light source.