When I shot these spooky looking tree silhouettes it was against a deep blue dusk sky, but I bumped up the contrast and changed the tint to a Halloween orange. Still it seemed a big moon would be a nice addition so I added a photo from an earlier post. I then added a mask to put the moon behind the trees, added a bit of warm tint to make to make the moon fit the scene, and finally added a subtle glow to the edge.
This is a deviation to my normal posts. I normally only post images without a lot of manipulation, but it is fun to do play in Photoshop sometimes.