simonSKW: It was taken within 5 minutes after sun set.

Mr T: I haven't enlarged the photo but I have adopted the Nikon Editor (auto contrast and colour). After adjustment, the quality became rough. Besides, it was taken at digital zoom 1x.

where is the sun,already set?

composition and colour is nice, but the picture quality is too rough.. it shouldn't happen in CP5700 using ISO200. Did u use digital zoom or u enlarge the pic??