This is a fun piece that may have you scratching your head unless you know the secret. Light distorts as it travels through a prism by a specific amounts. I have taken advantage of this and counter shifted the colours so that when viewed correctly through a prism, some of the magenta blocks will turn red, while some turn blue. Simultaneously the green blocks will either turn blue or yellow.

When viewed through a prism correctly, the image above will look like this.