Hey, I'm looking to make a professional looking watermark for my images.
I highly recommend you hire a professional then.
I suspect what you really want is a logo.
For that a graphic designer needs to know about you, your approach to your art, and the message you want to convey to clients for the next 20 years, because changing your logo every 6 months makes branding impossible.
A logo, as mentioned, is tied into your branding and will be used on letterhead, business forms, business cards and in all advertising. So, it needs to be scaleable and effectively renderable in both color and B&W, using both continuous-tone and half-tone printing methods and now for mobil applications.
For both scaleabliity and versatility of rendering methods, it needs to be made using vector graphics, not raster graphics.
Good luck!
Bitter is correct. Visit Youtube and look at the all tutorials that show how to remove a watermark/logo/copyright notice, etc.