Thanks! I love photography. The more challenging the better. I look forward to getting much better at this photographing objects through thick non-optical glass and water.
I find holding the phone right up against the glass gives better results than holding it away from the glass.
Of course your angle of view is limited.
I am working on getting my Hero HD video camera under water. It came with a water tight housing but I don't know where the water tight back is right now. As soon as I find that I intend to do some underwater HD video.
Nice photo! I've got the 4S too and it is great for taking photos, although the flash doesn't seem to be all that good. There are some good photography apps out there too - I got PowerCam the other day when it was free :)