After that I started sketching Mythical pirates. We have to make a hero, a sidekick and a villain with the spice of 90's like "teenage ninja turtles" or "Thundercats". I instantly had this idea of this protagonist - young captain of the pirates collecting artifacts of gods in order to take over all seven seas of his world, defeat Poseidon (Ancient Greek god of seas) And take his power - Telekinetic control of water.
Sidekick is this Phoenix/Parrot that he finds in one of his journeys. She is very attached to this pirate because of his personality and helps him in the most difficult situations.
Poseidon in this case is the antagonist. He rules seas with his iron fist/hook. In one of the fights for the sea against him our hero looses his leg. Poseidon is actually just a small vulnarable squid, but he makes his shape to defend and fight with his power to control the water. He feels a huge inadequacy for what he actually is and since he has this power he throws his anger to everybody.