Sorry to say, but I do not like the editing on this one. The eyes look quite fake. Do you have an unedited version?
However, the limit about editing pictures, is a matter of personal taste. I always try to get the best picture I can while shooting it, but there's times when a little editing will help create a more compelling image or help better delivering the message.
I totally agree! I learned photoshop before I ever tried/got interested in photography, oddly enough, so I usually like a healthy dose of editing. However, I just don't think it was well done. The nuances in the eyes are gone - there are no shadows or highlights, which looks unrealistic. And the edge of where you edited the eyes is obvious.
About printing, I really do not know. Did you try googling it?