Robodeau is a fantastic looking invention Léo, he is doing great work for our oceans! I like that your invention focuses on a specific material, metal cans, to remove from the ocean. It is designed for a specific job. That you have chosen to power Robodeau with solar energy is great too, this makes him even more beneficial for the environment. Finally, you have thought of a perfect use for the cans - turning them into reusable water bottles! Robodeau is a powerhouse of green energy, well done!