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.
A simple Photoshop tutorial, where you may learn how to expose an object by leaving it in color while turning the rest of the photo black and white or sepia.
First I will show you the easiest way in Photoshop to create even, concentric circles and after we will ad an inverted text to make it look hypnotic in a groovy kind of a way.
