I'll change those in a minute, thank you for looking it over! For your part, here's what I found:

You wrote "...of all elements in a products" It isn't gramatically correct, it should be:
"...of all elements in a product"

You wrote "Elements such as colour tone,..." The official name of the element is just colour, and should remain like that to maintain it as a professional reference.

You wrote: "Therefore it is in the product designers best interest..."  You're missing an apostrophe, it should be:
"Therefore it is in the product designer's best interest" or "Therefore it is in the product designers' best interest"

You wrote: "Keeping in mind about how consumers ..." It's convoluted, it should be:
"Keeping in mind how consumers..."

You wrote: "The solution to that is to create a product, that in its designed appearance and function, expresses..." In order to make it flow better, since the commas here are used as a parenthesis, it should be:
"The solution to that is to create a product that, in its designed appearance and function, expresses..." That way, if you were to take out the part between the commas, the sentence would still flow.

You wrote: "...subject to peoples judgment..." You're missing an apostrophe again. It should be:
"...subject to people's judgment..."

The comparison you used about the pretty and abusive person seems a bit out of place, maybe pretty and rude would be a bit better?

But apart from that, I liked it a lot! I will get to reading the last two sections, sorry for the long list, they're minor things really. And I agree with needing a more appealing image to represent the page.

To add, Cassandra, for the book I used, I actually used a slideshow from my Design Thinking class, which references that book, so I wasn't sure what to cite it as, does anyone have any ideas for that? As for the format I used, I just used the automatic cite button at the top of the editor.