The strong shapes give you a great foundation for a spectacular photo. I feel however that the shot was a little too overexposed killing too much of your details. As for the triangles there a little weak but I'll give then to you.
I love the concept! It seems overly bright though, causing it to lose a lot of the detail & contrast that I think could be extracted and used to really bring the shot into focus. Brings back fond memories of living in the city! (4)