Overall first impression is good. The site feels clean and easy on the eye, the image on the right is a nice touch too.
A few things though:
1. The title image is cluttered and the corporate name doesn't stand out too much. A clearer font and color contrast would do good.
2. The sites body is small compared to my screen. Do a little something to spice up the sides rather than using a light uniform color. Not that my site does this perfect, but hey.
3. The javascript for popup windows on your Examples page doesn't work here. I'm using IE 6.0 at the moment, being at school.
4. You refer to your portfolio site quite often, like the About page and such. Perhaps it's a good idea to include an About page on your 'corporation' site to make it feel more consistent?
5. The tone of your writing isn't very enthousiastic. I understand it isn't meant to be a corporations site but it does give a certain impression. The name Graveyard Designs doesn't sound very warm, too (and doesn't make me think of Design, really).
But besides those little points, the site looks technically well-done and pleasing to the eye. Nice work.