Imagine walking through a forest and seeing just a glimpse of these invisible figures! They’re the creative work of artist Rob Mulholland. It has been called the Predator effect after the 1987 film where an alien life form seamlessly blends into its background.
Mulholland told BBC Scotland that the key to the effect was creating a distorted reflection. “It alters reality, one moment you see them and the next moment they blend in. There’s an ambiguity to it - it doesn’t answer all the questions.