This is a great effect, and idea I like how the picture is framed, at first glance it looked as if the bush was lightning from the sky. With the light tone's and color this is reminiscent of something from a dream or nightmare, very beautiful and haunting at once.
Well, night photos have a glow to them you would be able to see a gradation in the sky. IR has a white cast on foliage. A red filter or something imitating a red filter would be needed to start to get this effect. Think Ansel Adams.
Thanks for helping me, then.