I did a wave form and it got me thinking about what a nice shape it is. There is also a cartoon of a shark fin gliding through the grass and this also had a bit of an influence. I did like the idea of it being grey and gentle on one side and all teeth on the other. I have respect for sharks and I certainly aren’t keen to meet one in the wild( while I am swimming) and I also hate the idea that they are being hunted for their fins.