I've seen many images taken by professional photographers that had a certain something about the eyes that made them very compelling. A few days ago I was working on a photo painting tutorial by Fay Sirkis in Photoshop User magazine. While the tutorial was for painting a photo of a person, I used the eye techniques on this image. They involved lightening the iris with the dodge tool set at midtones at no more than 15%, darkening the rim around the iris with the burn tool, also set at midtones, exposure 50%, confining the glint to one spot and then painting a moonshaped area of the iris opposite the glint with a lighter version of the iris color,next painting the white of the eye with an off white color and then lowering the opacity of that layer to allow the previous eye color show through to make the white look less stark. (On a person (or an animal with obvious lashes, those along with eyebrows would be darkened hair by hair with the burn tool.)