smck

What I like here is the contrast between the glass & the stone wall, and the composition in general. I would not cut off the small triangle on the left because that's what makes the shot interesting, that the contrast glass/stone is repeated in the background, but I'd remove the lower part of the picture where you can see the beginning of the next glass row to make the composition more balanced. But apart from that it's a very interesting and well thought-out shot