Thank you for those who like it!!
alvincyt : Normally noise is come from high ISO and/or long exposure time. In this case, I think the noise is come from the long exposure time (8s) since S602 do not have a built-in noise filter. I may also have amplified the noise by doing sharpening in Photoshop.
KSHA : Thanks for your advice, next time I will use Aperature priority and set to F4. (You like F4 very much?? XDD)
dogu & perfectkuen : Jeffery has already given you the answer. He was right, the the top floor of Ocean Terminal Car Park. Thanks Jeffery for answering!!