Kagi's image search is *amazing*, far better than Google's, and it has great copyright-based filters. When combined with tineye.com (for finding high-rez versions of images that might not be correctly tagged for rights status), it's even better. Even so, often Kagi will surface thumbnails of images Tineye can only find as high-rez on proprietary stock art sites like Alamy, covered in gross watermarks.
5/