Considering it's C/P, you can at least sharpen it up. It looks like the base image you used was low quality, or maybe you used a filter on it? As for the rest, I think the color choice was rather poor. A less saturated look would fit better.
I think you should try making a head on your own with C/P, and see what you come up with.
You seem to be pretty decent at it considering your join date.