I'm not a fan of centered text, but that's more a personal choice than anything. I do however really like minimalism and whether that was a conscious decision or not you've not done too badly on the minimal front.
I don't think the copy (text) or content (what is said/shown), particularly on the home page, does you justice. Your portfolio may well be the only thing that a potential client looks at when considering your for the job -- you don't give them much to go on!
Finally, I don't mean to be rude but you're meant to be showing off exceptional coding (I'm picking on XHTML here) talent -- your own source code isn't going to impress many.
I feel like I've just been hurling abuse, so I apologise if the post comes across like that. I mean for you to take the comments constructively. :)
As Village Idiot said, it's very basic. Not much to say about it - that can be a good thing or a bad thing. I believe the site needs a touch of another colour - such as a green or a blue - or if your feminine side is screaming to be let out of the bag, pink!
The man who comes back through the Door in the Wall will never be quite the same as the man who went out.