Not your average pixel effect tutorial, let me show you a nice little trick where you apply the normal square pixelated effect and turn it into checkered, diamond looking photo pixels.
Fun, yet very useful tutorial, where you manipulate a photo in a way it will look like you're standing next to Brad Pitt or any other person in that matter.
Remember the legendary Predator movie with Arnold Schwarzenegger? Those Predator aliens had this thermal view feature so they could their prey even in complete darkness, let's Photoshop it.
If you don't want others to use your photos and images without your permission, you can create a so called custom watermark with your name or any other text you want.