G1 X Underwater images

I admit, I am a point and shoot photographer so I have no idea about F stops etc.....but had a great week diving the Red Sea with my Canon G1 X.
Here is a link to my album...always appreciate any constructive criticism.
http://www.warrenssite.com/Egypt/Dee...713142_4W8cBh#
(Some images were also taken with a Canon S90 with an Inon wide angle lens....majority with the G1 X though )