Hey, I know the reply is a bit late but maybe its still helpful to you. The eyes look very good but lack some refined details Tip: Adding more highlights and defining the shadows more, will add to the overall quality and realism. Also, if it comes to light reflection, you can think of the eye like a jewel or a marble. The buttom of the eye is the most bright part (but also add some shadow at the very buttom, again like a marble), while the top is the darkest. Also, the reflected light dances inside the iris. Its like the light is bouncing inside the eye. I hope this helps