I like the "Skyscapes" category of the competition. These must include elements of both the Earth and the heavens. The winner this year was
"Binary Haze" by Ainsley Bennett.
The photographer went out early in the morning to capture a close conjunction of the Moon, Venus, Mars and Jupitr. He worried that the low-lying mist would be a problem, but found that "the mist added a new dimension by accentuating the brightness of the crescent Moon and Venus, making them look like glowing spheres. The resulting image looks like something from a science fiction movie."
One of the judges commented:
The low veil of mist has transformed the Moon and Venus into something quite otherworldly, like a will-o’-the-wisp. What's particularly rewarding is the way this softness is contrasted with the stars in the night sky above, which are crisp and sharp.