I as well as photography like to create graphics using a number of programs. These include Xara Designer Pro X Design software by Xara,
Inkscape , Autodesk Sketchbook Pro and a number of others. Many times I will start with a photograph that I have taken and turn the picture into a Vector drawing. Sometimes I will take other photos that I like and create vectors from them. A good number of them can be found at WBG Photography & Graphics – Home.
Each of these programs come with different strengths and weaknesses. I switch back and forth from time to time. Both Xara Designer Pro and Inkscape are capable of rendering raster images(PNG, JPG, etc) they are in fact native vector programs saving in EPS, SVG etc, while Sketchbook Pro is solely a Raster image program.