It's been awhile since I've written a critique, but I love this art, so here goes.
Vision: A piece like this approaches words like sweeping and epic in it's symbolism. At first glance, it appears great thought is taking place; great pondering. A crossroads has been reached. Well done.
Originality: I have seen similar themes but no so well done as in this example. A solitary approach and in it's simplicity achieves great originality.
Technique: The technique is almost flawless. The only thing I can see is the angle of the shadow. It should be over to the left more as would be directed by the light source, but this is minor.
Impact: The solitary feeling of this as said before achieves much. Great scope and great feeling have been achieved.