Looks pretty good. I think I would get rid of the “page of renderings” These don’t really show any skills that you haven’t shown in the rest of your projects and they are distracting and irrelevant. I like your thought process and final form refinement much more on the water bottle than the energy generator. I think I might put the water bottle first as your attention getter. On all of your sketch pages try to vary sketch sizes and give the page some more interest.