Woa, there's quite a lot of content in there! Good stuff!
My opinion on the usability:
- I think the "zoom in" effect on the pictures works perfectly, as it doesn't obsctruct the rest of the screen or prevent you from scrolling down on bigger shots like Lightbox used to behave.
- I'm sure it's temporary, but the "read commentary" contents are all massive blobs of text without uppercase etc. You should still have paragraphs, correct punctuation etc. in these comments or people will click, see how messy they look, and skip to the next images. I also think these commentaries are too "laid back", too blog/forum-like and don't really suit a portfolio. You should keep them simple, to the point, and professional-like.
- I think your "download" links could use an icon next to them, because I missed them at first.
- You should have a distinct color or text-decoration for the links anyway, because right now they look exactly like the project titles which aren't links. Simply underlining them would do the trick, or a warmer color would attract attention.
- It's usually good to be able to know instantly where in a website you're "standing". That means giving clues to the visitors about what page they're viewing. For instance, I clicked Gallery because I thought it would be a selection of your best shots, but instead realized it was the homepage I was on. You should consider adding a visual clue about which page is "activated", like a small arrow or point next to gallery when you're on the gallery page, and on Resume when that's what you're visiting.
- Nitpicking here, but I think the space between each projects "block" could be increased a bit, by 10 to 20px for example. Right now, everything is a bit too clustered for my tastes. It would also make it instantly clear which link (download/comment) belongs to which project.
- Since you used "anti-spam" techniques in your mail, you've already given up on the easy of use of just clicking or copying the email address. So I think you should then consider making it an image instead. Make it more visual, as right now there is no @ so it doesn't look like an email address when you scan the page. Turn it into a pic and that way you get rid of the spam issue and still have an email address that clearly looks like one.
- That's entirely my personal opinion on the matter, but I would have classed your project by type, instead of by date. That would have made for an easier navigation pattern: instead of having to go to a page, scroll it down, then click "older" again, scroll it down, etc., I would have grouped them under 3 or 4 sections like "Levels", "Drawings", "Models", "Misc", or "3D", "2D", "Others". That way, people can select to only see what they're interested in and don't have to watch everything in order to access the oldest stuff. I also think it's a bit cheap how the projects titles are displayed (maybe it's because of the way the guy coded it for you) and the underscores in the titles don't look good. Classing your drawings under a main page would render "new_digital_painting_batch" titles useless, and you'd be able to simply put all of them together in order of date and let people click on the ones that appeal to them. On the Levels or 3D page, you should still keep the names of the maps you created though, but I think they could use some enhancement like uppercases, no underscores, maybe bold type, etc. Also, with my previous comment in mind, you should make clear which page the viewer is currently on if you adopt this idea, for instance giving a different color or an icon next to the Levels link if that's what the visitor is reading.