The technicals are all fine on the portrait. Your cat photos all have an emotional edge that draws you into them. They are vibrant and you feel almost like the kitty's are flirting with you, or showing off, whatever it is they are doing, they evoke an emotional response.

Though this portrait is sharp, exposed properly and has all the elements of a good photo, it really doesn't evoke that same emotional response. She has a sweet expression, but, nothing really draws you into it.

Next time, try to get the dog to be either playing or sitting with its head turned, stuff like that.

Its hard to critique your photo because there is nothing very wrong with it. Its just missing that emotional piece