Some ideas. For me it is not absolutly clear what you want to show here. Dolfins doing some nice tricks or a person watching some dofins doing strange things. Everything is too equal i think. The light is coming from the back of the image making the sky optically more important than the rest. Maybe you support the major theme of the image with a little more (directed) light and perhaps with a pov that puts the major thing into the center and sends the rest to the background. Only my 2 cents, Walther

One day your ship comes in - but you're at the airport.