Jonathan, some incredible shots there - that would have been an amazing experience. I've just returned from Victoria on Vancouver Island and they have the Wildlife Photographer of the Year exhibition on display at the Royal BC Museum (it's on loan from the Natural History Museum, London) and some of the shots are breathtaking.

We went out on a zodiac yesterday and cruised around with the Orcas, it was completely surreal. They are an amazing creature. Here's a quick one I processed this afternoon.

Orca by Ben__Taylor, on Flickr