Since my initial glimpse at the picture, I was captivated by background. I swore there was something, and there was:
After looking at the art of this amazing artist— not only was I baffled, but as an artist myself, I understood that whether stereotypically beautiful or not, this is aesthetic — I saw that his art correlated in some ways; his art itself is the mythology he is creating —why I have to say, he is brilliant in that way.
Upon what I highlighted above, I found the following image:
http://gloom82.deviantart.com/art/Children-of-the-war-160699012
Guys behind him look pretty similar to the guys behind the guy looking at the west, the place he knew was home.
So, I think the puzzle is about Children of war. But even if it wasn't, the way the artist represents these children unforgettable, so specific and singular that in a way it still correlates. Also, in both images there are these web sort of structures, which correlates the environment to be the same. As said above, this is his mythology, so all his work could be connected, and this is just a piece of it.