kornse, nbaleva, Luko : Thank you
tdpriest : I did get very close to the subject. Rebreather? I wish I could afford it. hehe
SOX404 : Basically I used fast shutter speed, small apature, and low ISO for further details, you can check the exif file for individual photo in my flickr page here: http://www.flickr.com/photos/jalil_razali/