Nice Concept.
This is as great as Nintendo's arts, and you even added details such as that little armor under his tunic.
But, if I'm right, this is the Twilight Princess' Link, isn't it? If is, then he should hold the Master Sword with the right hand, and a background would make the picture better.
Anyway, that's just awesome. Those little mistakes don't spoil the picture at all. Good work!
Stunning but Compared to your Zelda I was a little of let down. I am not writing this to be mean but to give you constructive criticism so that you may become an even greater artist that you already are.
This you may want to consider;
-His hand could be proportioned to fit him better.
-the boots look like old computer graphics and look like they lean more towards steel. (My suggestion is to warm up the colors and textures to match the arm guards)
-as a few others have pointed out, his jaw is too strong
-finally, his neck would be strained if he was looking that far to the left (his body turned one way, head the other, did the pose to double cheek)
I hope this helps.