I've been looking high and low for a high resolution version of this picture. I don't know if it pertains to an anime series or not... I wanted to make a poster out of it to hang in my home. If you know where I can find it I would immensely apreciate it.
@_Nuno_: Hey! I found the original picture, it seems that your version is altered a bit (the surroundings have been made in grayscale and the girl is the only one in color). The artist who made this piece is called Mikihisa415