Who is using your paintings?
Google has made good tool for all who are interrested who is using their pictures. It is nice to find people who have liked your paintings or pictures so much that have saved your photo on their website. You might also find stolen pictures that are used by competetive companies. In worst cases paintings have been found on other painters resume or from Chinese copy painting stores.
This Ural Owl picture taken by Janne is decorating Slovenian, Thai and Indian birdtour company websites. It is also on Creeck. None has asked permission for this.
Open picture file next to google picture rearh. Click left button of your mouse on your picture and drag it on search bar. Google will search where this picture is published. It is not perfect yet since it does not find everything.