I've seen many colors like this one. I like when black and white pictures have one thing that stand out. This is acheived by color. One item in a picture had color. This is usually a bright red color that stands out. It draws attention to that one item.
woman-holding-mirror-on-grass-reflection. self-portrait of photographer Laura Williams, an artist from Cambridge, UK. The mirror illusion was achieved in post-production using Photoshop with the idea of being ‘invisible’ or ‘transparent’.