Hello, thank you so much for the feedback which has raised so many questions I had not thought about when I was working on these.
To be honest I did not have in mind what these products were when I drew them. The exercise brief was simply to draw 10 objects, and I was running short of time to elaborate the core ideas. So I acknowledge that visual communication is not very effective.
Sorry I don’t have follow-up sketches, but I will keep in mind these points to improve my future work.