I like the shape of the cuttlefish on the right, I think it would look very well as indicator icon in monochrome colors. But the icon itself is (as you also pointed out) a little too plain -- even the other two designs on the left and in the middle -- for the main icon.
Also, as paulo pointed out already, the new icon should give the user a basic idea of the app.
Hey Jimmy,
I like the shape of the cuttlefish on the right, I think it would look very well as indicator icon in monochrome colors. But the icon itself is (as you also pointed out) a little too plain -- even the other two designs on the left and in the middle -- for the main icon.
Also, as paulo pointed out already, the new icon should give the user a basic idea of the app.