It looks pretty clean.
You have everything on one page (home, gallery, features etc.), which isn't a bad thing, but I feel they're not separated enough. I see you did put line breaks between each section, but I feel there should be a more emphasized way of telling the user when he/she is scrolling into a new section. Maybe make the title text larger, or use a different colour of each section, or make the line break larger somehow?
In the gallery, I expected my mouse cursor to turn into a hand when I hover over the "next" and "previous" buttons, but it didn't.
I would have put the "News" section at the very beginning, followed by "Gallery", then "Features", then "Download".
On my laptop, the website feels too big. The gallery doesn't fully fit on my screen (top and bottom), and everything else just feels too much "in my face". Zooming out to 67% feels about right. I would make everything smaller, but spread it out wider so you're using as much screen space as possible. This was on a 1366x768 display.
The colour scheme is clean and simple. Orientation is clean and simple.
I like the bright layout more than the dark layout.
TheComet

Yesterday is History, Tomorrow is a Mystery, but Today is a Gift. That is why it is called "present".