your code
diver(50,50,400);
submarine(500,250);
star(50,200,"pink");
star(50,100,"purple");
oxygen(150,250,50);
urchin(150,150);
octopus(250,50,250,400);
octopus(400,50,400,400);
octopus(50,200,500,200);
oxygen(300,250,250);
star(200,250,"red");
star(350,250,"green");
star(450,250,"pink");
star(100,250,"green");
octopus(100,100,500,100);