Awesome 

I like this pixelpic. Its simple, but good!

 Not bad. The floorboards are kind of messy and odd in some places. Was the missing pixels on purpose? Cause it doesn't look that nice, in my opinion (have you also tried using different colors instead of black for the floorboard outline?It may look a little less distracting if it was purple or dark brown). And the cat is a little unreadable. It lacks the body structure of a cat and has weird eyes (cat eyes are one of the more distinctive parts of a cat, and I'm not getting that cat-like likeness there. The purple-brown on the dog (the middle shade) could have been a little bit lighter. The contrast seems a little odd on the dog. Still it was a good shot. Keep it up, and I hope you enjoy these weekly challenges.