Two contrasting objects make this an intriguing photo. White/black, visible/hidden, and familiar/unknown, each object is additionally framed by shapes that reinforce and strengthen the individual. Your use of DOF was perfect for the scene. Excellent.
I really like the left half of the pic, but the cat's so dark it took me a moment to notice it. A little lighter and I think it would have had more impact.
I kind of wish that the cat didn't disappear into the shadow so much...but then at the same time it really is kind of cool. I guess, put me down as undecided on that...but I do like the photo. Nicely done!
I like the grunge look in this one, the lines on the floor are very interesting. Not sure what was around it but i would also like to see a slightly larger crop