Welcome to the forums!
For the first project, I think I would title it Portable energy generator, because I have no idea what a wave energy converter is.
For the research outcomes in the gray box, see if you can get them to a short, quick easily readable bullet point so someone who is looking at this project in 30 seconds can grasp the outcomes.
The Ideation sketches look good for the rough stage, do you have any more tight sketches that communicate your final design? They'd be great to see and to show off you have the skills, because right now they would only be presentable at an internal type meeting, not to a client.
Really nice prototyping and final model, you got skills!
General tip: watch the hyphenated words, on "the Problem" page in the water bottle it goes at-tached, I've noticed a few of them and they're distracting.
Water Bottle Project:
For the research, maybe tell the outcomes, rather than just show pictures, it'll help tell the story of your project more.
And that's a neat idea for the helmet!
Overall it looks good, definitely work on your sketching skills though, draw everyday, everything.