This is a lovely shot overall, the clarity is wonderful, the DOF is fantastic. The only thing that bothers me a bit is the perspective, one moment the building looks like it's about to fall on you and the next it's about to fall away, which actually is kind of cool! The flowers are distracting on the bottom, a tighter crop would have gotten you another point from me. :)
base 1: 1/1; challenge: 2/3; technical: 2/3; aesthetics: 1/3; total: 6
Urban landscapes -- description called for "buildings" -- a bit picky, but I see only one. I don't get the sense of 'urban' here. The photo seems off center or asymmetric without meaning to. You should have been a couple more steps to the right to look squarely through the door and then make sure you are equidistant between the edge of the photo and the towers on both left and right. Sky upper right is blown out too -- not bad enough to knock off another tech point though. I like the flowers in the foreground. Nice touch.