I really like the angle, here. The colors match well, too. The building seems to be seperate from the sky. This makes it seem surreal, yet almost pasted. The sharp, rigid lines and edges of the building contrast unnaturally with the sky.
(Gah. I wasn't done typing, and accidentally clicked send. ._. )
The sharp edge/soft sky contrast makes me unsure of whether the sky is close enough to touch, or unreachable. They could be descending ominously upon those stern lines, or simply drifting nonchalantly above.
As for the thing about looking pasted-on I said in my previous comment, this mostly applies to those chimney-things. The red of those seems not to fit against the yellow sky-- too light.
But overall, a pleasing image. Shall I mention again the immense attractiveness this angle lends the building? <3