thanks for the comment about the ripples. Im a bit embarassed to say, but i dont actually use a dSLR. I have a point and shoot superzoom camera [fujifilm s6500fd]. It has no shake reduction, which is bad, especially if you are on a boat like i was when i was taking this photo.
Oh its a great camera. Its just people sort of short change photos if they know its not taken with a dSLR. Nasty i know. But its generally true. Increasing the ISO and shutter speed is exactly what i did .
I am looking to get a dSLR though. There is so much choice, and not much [apparent] difference. Thanks for you advice thou. I am leaning slightly toward nikon at the moment.