Inspiration for our robot

Hey readers!
As you know that we have a project or a school assignment and our school competition, and we really need inspiration. Our theme is robot to clean lake, so we searched in google and found many pictures
.

This robot grabs waste product or rubbishes.

This is Walle robot which filter water from rivers to drink in Germany.

This robot cleans the aquarium floor

And last, this robot is a design to clean lake. We are really inspired with this design and maybe we could use this design (its a maybe :D )

I hope this project finish soon :)

Thanks for reading

-H.A.V