thanks for the comments, appreciate it. all photo taking was in a rush because my colleagues are heading for dinner at the rock. so without thinking too much i just snap it lor,
will be more careful next time for the framing & composition part. As of all the vignetting is sort of did it purposely - don't you think this will bring your attention straight to the center of the pic?
(just my way of presentation)
Note: at the beginning i more worry about the IQ during my shoot, but after few shoots i found that as of myself i nearly didn't do any print out at all, means i don't need a HIGH Quality picture, so i decided just do it as a hobby, casually, walk around snap whatever i saw rather than being a pro confusing my self with all those techniques, settings and exp gears, etc. - Just lazy, no tripod for the night shoot,
maybe i'm still a newbie, who knows on later stage i'll change my mind