I think it's absolutely gorgeous. It's an intimate portrait with a unique composition. The people who comment tend to be the most enthusiastic photographers, and thus the most perceptive voters. Take their word over the rest of the mob.
Check out a photo in my profile, also called "Isis" :). That's my cat.
The white spot is blown out. The focus could be better. The composition is good, but I would like it better with a sharply focused focal point. I also see pixelation in this, did you crop a lot?
Sorry, but all in all I see this as an average photo, with a lot of room for improvement. I wouldn't complain about your score, you placed in the top half.
I love how close we are to the cat - the photo is all about the curled up cozy cat position, and you can see evry silky hair! Beautiful, subtle cat "fauna" colors- and the white and black wiskers springing up above it all.