if you call it "nice" in the beginning, you make it hard to be honest for those people supposed to comment
Anyway, I like the colours very much, however white balance is a bit off on the couple I think.
Also, regarding composition,
1. the background's horizontals are tilted. From where you took the picture, the perspective does not allow for vertical lines of the tower and the horizontal lines of the building to be at a 90 degre angle. To achive this, you should have changed your own position in a way that the line of sight is perpendicular to the building's walls.
2. the image is, for my taste, too bride-centred. poor him, he looks more like an add-on, but not like part of the subject.
.. still, the overall mood is good, mainly due to the warm colours of the background light plus the nice blue sky