not bad - i like the texture - looks like you've got a bit of stretching on the window edges tho. try adding a layer of clouds in ps - just to vary it up a bit. it's also nice to maybe double up your color map as a bump on about 0.1 - you'll make a specific bump map later, but it will just give you a bit of break up.

also - if this is the final angle - i think you need to think about composition. - it doesn't usually work to have 2 things side by side. i'd have a play with it - maybe add a third thing - eyes like triangles.