I'm surprised so many commentated that the lines don't lead anywhere...Your eye is led in by the bottom left lines;is then led to and drawn up the lines to the top of the image;then down to the lines that end at top third; then down to the bottom centre. I thought it led your eye exceptionally well.
I don't know what was at the end of this tunnel, but I think if this image had been taken a few steps to the right, this image would be improved. Then the eye could follow the tunnel down to it's end, and be drawn into it. Stil interesting though.
Lots of lines, but where are they leading to? There doesn't really seem to be a main focus point. I find my eyes wandering around looking for something to hold my attention.