The use of a sensor sounds very effective Ella, that way, your invention seeks out only the harmful rubbish without disrupting sea life! The Garbage Scooper would perform the super important job of clearing the waste from the ocean that shouldn't be there, making everything that lives in the there happier! A pully system is a unique way of doing things too, it could clear lots of waste at once! Your drawing is also beautifully colourful, thanks for your great idea!
