I will start off by saying that I did love this picture. However, the things that I thought could have been done better (thus my writing this) happened to be the first thing that was asked about when asked to "Rate this deviation". So I am hoping this doesn't sound harsher than I intend for it to. That being said:
Vision: For those that don't know the qualifications for the "Vision" category, the deviantart FAQ said, "Does the artwork present or reflect a point of view, theme or idea?" Now, while, again, this picture is very well done. At first glance, I would not have guessed that Loki was an escort, as described in both the title and description. In fact, the whole idea threw me off until I read the summary of the fanfiction the picture was supporting. However, I did think that the facial expression, the outfit, the background, the body language, etc. I thought all of that went together very well in the picture itself. But, to me at least, it did not convey the actual idea that the title intended it to, which seemed necessary to accurately represent the idea.
Originality: It was very original - unlike any pictures I have seen of Loki before. Even more so because it was inspired by a fanfiction.
Technique: Well done. The black and white was a very beautiful choice. The blurriness added a lot to the picture when it was enlarged. The only thing I didn't particularly like was that the entire picture was blurry when enlarged. If it could have had, say, around the hood clear and gotten blurrier from there, I think I would have preferred it. But the edges where there is the red and green (I can't remember what it is called, sorry) was a great touch.
Impact: This was what struck me the most. As soon as I glanced at it, I noticed the eyes. Sad and serious, very accurately portraying the character. As my gaze moved out, I noticed the absolutely perfect eyebrows. The cheekbones. The lips. Then the facial expression as a whole. It beautifully portrays the character and his emotions. Very well done. Next was the hairline, which was spot on. The hood and the hands, which I was particularly impressed with, because they looked natural to him, kept his hands out of the way for a clean shot, and added more emotion to the facial expression. While I was not a particular fan of the jacket and, more especially, the necklace, I imagine that has more to do with the interpretation of the fanfiction than the Loki of mythology, comics, or movies. And, not having read said fanfiction, I can not presume to say whether this outfit accurately portrays this version of Loki or not. The last detail of note that I noticed was the building. The plentiful glass cubes on the sides of the building reminded me of the tesseract.
All in all, I thought it was very well done. Very striking. Very aesthetically pleasing. The few things that I did mention, didn't particularly bother me, but I know that I would want to know if there was a way for me to improve. At this level of cosplaying, I assume you are the same way.
I love this picture just like I love the fan fiction. A lot. His caputered that Loki so well. I can't wait to see even more of this Loki if you do more cosplaying to the fan fiction Loki. Very amazingly done and it looks even more wonderful in full view.