Try using Creative Commons images, public domain images, and searching for free and royalty free images on line. Also if you alter a downloaded image by changing clothes colors, adding an additional item or two, etc (requires some photoshop smarts) it is no longer the original pic. Today, using other peoples content...photos, videos, articles, graphics...require some creativity. The cut, paste, and re-use days of any online content, you find, is coming to an end.