The photographer is Florian Wenzel. Pic related is the image directly from his site.https://www.florian-wenzel.com/gallery/general/farbfleck.html
Although, I've seen 2k wallpapers of this. cc: https://www.wallpaperflare.com/white-and-orange-plastic-toy-road-coats-mist-wallpaper-293605
I don't know if one is more "original" than the other, and he seems to not be reachable via email at the moment.