It's quite good. By looking at it I can see that the designer knows what he is creating - it's simple, perfect and looks professional. Especially the gradients that look just fantastic.
Although while learning webdesign I've seen many tutorials that teach similar designs with the same colours and due to this, it doesn't look too original. It would be a good layout for someone who designs something that needs plain layout - jewellery for example, because this way the layout doesn't distract reading, but most web layouts are meant to be simple and if you are selling simple things on a simple layout, it doesn't give too much impact.
I'm pretty sure you are able to do more and even if you prefer rather simple layouts, try something more original, something, that the world has never seen before.
First of all, I really like the color scheme. It seems to be playing on autumn right now, but really, they complement eachother so well, it's visually delicious. I love how well you lined everything up, especially on the right side with the sticker. Also, you have a nice balance on the page of information, downloads, and an image thing that I suppose would scroll through projects and be clickable?
However, as a portfolio site, it's a little disappointing. It looks much like a template site you might sell on wordpress (though not to say those aren't beautiful as well) or another blog/company website. It doesn't really say anything about you, other than you know how to make clean layouts--and you're supposed to be representing yourself, right? I look at this and think "nobody's home", and I think you could put a lot more of yourself into it. It may be trendy right now, and that's what web design is about in some cases, but how about you make it a little more visually interesting in a way that reflects what you can do!
What I really think would help is to have a more interesting logotype---it's not bad, but the thin-thick and then words spaced underneath seems to be a business card default anymore. And I'm not saying you should scrap it either! But again, try making it your own somehow, even if it's a tweak. Little things go a long way, especially when it's the first thing the viewer sees on YOUR PERSONAL PORTFOLIO.
You've got the skills and the talent, man, I can tell just by this layout and the layout in the thumbnail. Flaunt em!