Beautiful subject, I like the pose. I also really like the pebbles it is standing on. You could extend the right (if you have it) to give it a more trsditional 2:3 ratio. Different to see one without all the tall grasses!!
Colors, composition, exposure all working in this image. I like the pebble ground cover. I think I would have preferred to have the owl looking at you in this image as he just doesn't seem to be looking at anything.