Here's what I'm thinking....
The black mass of the tower in the background is overwhelming the image, and Buster, whom should be the focal point of the image is little too small. I would turn the camera to the right so that the background castle towers are to the left of the Buster, and are little less intense in their blackness. 
Perhaps if you take the ambient shadows, and set them to about 70%ish... seems like your shadows are pretty dark right now, making that tower all black. IRL, shadows are almost never that dark.  Add little more light on Buster too.

You may want the towers to be little more crisply defined and tad more saturated and in focus then the forest behind it, but not too much lighter or darker, so that it doesn't detract from focusing from seeing Buster and the expression on his face.

With turning the camera clockwise some way you can see little more if the green scenery too, and let the viewer imagine what Buster is seeing, or has in mind with 'that far away look'.

Right now one of your 'supporting actors' (the castle) is competing for viewers attention with Buster, whom I'm thinking is the main character in the picture.

How about turning Busters head to the right, and setting the camera to look a bit over his right ear, and down the left whiskers? With his head turned, the viewer will see his whole body and his expression, and a lot of the scenery, and some of the castle to give it all scale and the feeling of the perch???

Anyway, those are my first impressions.... :) Take what strikes a chord, and junk the rest :)

I haven't made any progress with the texture this weekend yet. :(  I'm stuck on finding good reference photos.... Seems I'm going to try turn this into a photo-texture. If I don't make it into a photo texture, it may go faster... Looking at your image, here, you're not going with photo realism, so a photo realistic texture may not fit the scenery, huh? Thoughts?

Hi, my namez: "NO, Bad Kitteh, NO!"  Whaz yurs?
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