I like this a lot. Of course, our entries are similar, as you pointed out. :) I voted this a 6.
Flipping back and forth between them, there are a huge number of lines that line up remarkably well (for example, the floor here lines up with the platform in mine).
I played around with a more horizontal crop, as you did. I think it emphasizes the vanishing point even more, and I think your crop works better for a perspective challenge. But since this one's about lines, I left it bigger.
I wonder whether the color vs. B&W was the difference in our scores or something else?
This is great! It makes me queasy just looking at it. When I saw the thumbnail, I thought it was an airplane falling out of the sky and the passengers had all escaped (maybe it was the yellow lights hee hee). But now I see it is the subway (I hope). I just like how the photo evokes the imagination.