It certainly is extremely cheeky, harvesting other people’s images and then toting for donations. It is also theft of your intellectual property, since you own be copyright. I suspect that you might not be able to find a physical address for them but there are at least two things you can do. If they have a contact route, then tell them politely (I.e no swearing or bluntly accusing them of theft) that they have used your intellectual property without consent and are now liable for £100 basic fee for use of copyright images without consent and there will be £100 for each future violation. You are unlikely to get this however, from Internet charlatans. The other thing is more useful. When someone somehow acquired a scanned image of one of my books which I sell via Amazon KDP, and was toting it ‘free’ in return for donations to their site, I approached Amazon. They washed their hands of it since I was a self publisher and the pirate version wasn’t being sold through Amazon. However, they suggested I ask Google and other search engines to remove the site from searches. Google do not like showing pirate sites and after I filled out their on line form and included the url, the offending page disappeared from any attempt to google it. It wasn’t hard work. I also told the site (in India) what I had done, just so they knew how being a miscreant got their beloved web pages removed from search engines. Not compensation, but a modicum of grim revenge, which is right up my street.
Not much point in trying to contact the person (Im in polite mode today) behind this, even if you can find them they are unlikely to respond and even if they do respond they'll no doubt expect you to be flattered that they have chosen you images!
I've always found the best thing to do is contact the hosting company and issue a take down notice
This person (still in polite mode) is using Blogger which is part of Google, here are there details regarding copyright