Great Renders!
I review a lot of portfolios (thousands and thousands over the years) and there are some things I appreciate.
- Display your work in a clean "space", show your work in a graceful simple manner wether it be on a piece of paper, or web page.
- Make it easy to find. If you are showing it on a web site don't hide it behind fancy flash animation. Art directors sift through a lot of portfolio's and have little time to hunt for things on your page. I'm patient, but most will just move on and not look at all your work, they'll look at two images than move on, frustrated.
- If other people worked on the piece with you (happens often in my field) clearly define how you contributed to the work.
- Know what your potential employer is looking for, and craft your portfolio for them.
I'm not trying to be mean, just stating a few easy things to keep in mind when crafting your portfolio. I see so many missteps in this area, that it makes me want to start a portfolio coaching business. I can't believe schools aren't teaching this nowadays. In my day that was essential. And you can tell the schools that teach how to do it and those that do not.
Your first image is a tad busy. I love the images but you could do with just one and I'm not a fan of the background texture. It's a tad distracting. My eye wanders all over the page not quite knowing what I should look at. I'm looking for your work, not looking at your packaging. You have great work, show it off.
Your second piece is great. The layout suggest a path for my eyes to follow and it tells a story. I'd lighten the background behind the plan view at the top left corner, and make it pop.
#3 is great as well. But perhaps a tad busy. My eye does move on the page pretty well. Not sure what the 3 images represent in the middle - are they day to night? I'd take out one of the top down views, it appears that the second one does not show anything new.
#4#5 are great versions of the last one. If you were to show these to me in person can you talk me through each page and each image, giving me a reason why you put each image on the page? It appears that you could, so that's a great thing.
#6 The layout on this image is a too weighted to the left for my taste. I want to see that tree as a whole and give my eye something trace to the structure. This is a hard one because the green area is obstructing the face of the building a little. If I where to shoot a still of this in real life (or shoot for a movie) I'd move my camera to the right, show the left tree in full, get as much of the building front as I could, and show off the minimal detail on the side of the building (but not too much). This angle might also provide a peek up those stairs which looks incredibly inviting, and I want to look up them 
All in all great work! Honestly. Better renders and layouts than 90% of the portfolios I see every day. If this is truly your first portfolio, you are well on your way! Of course keep in mind I'm not in your field, I'm in the visual storytelling, game design, animation field (whatever that means).
