There are some great things in your portfolio! Here are some things I would consider!

1. Not a huge fan of the Times New Roman font. It may not be Times, but it's similar. Fonts like those are great for essays and papers. I would go with something a little less harsh like an Arial or Helvetica. Try it out and see what you think!

2. Love the use of white space, and the exploration drawings and models are awesome! The datums you're setting up are a little confusing though. The text seems to be floating in space and not aligned with some of the images you're showing.. I also think in some cases there's WAY too much text. Try to simply the typography a bit. Let your work (images/graphics) speak for themselves!

3. The oil paintings are AWESOME! The way you've laid them out is great! But again, the datums you're setting up are misleading/awkward. Either have the paintings center justified on all pages. Or even better, set up a constant size so that they all follow the same size and keep a consistent datum!

As a whole it looks great! 

I kind of disagree with @lourou on the font; it totally depends on your preference of style. Your portfolio is very fine and clean in details, so I would think that the serif style font suits it well. However,the only thing i noticed is your resume used a different font...it might be your preference, but it's always good to have some consistency.

The arrangement of the text seems a bit weird too, like @lourou said, they are not really aligned... (page 1- 8).

Other than that, really good job!