The photographs are cute and the compositions are really clever. The fact that the Tomcat Lilu plays along with the set up creates very funny photographs. I don't know how he had the patience to photograph Lilu, my cat never cooperates with me when I photograph her! The images rely a lot on timing and chance, capturing the images at the right moment as well as some photoshop trickery.
You can see more photographs on Andy Prokh's website. http://www.photodom.com/member/andy%20prokh