The red and the blue don't go well at all together, n image or two onto your header, say of an internet representation or something. Also when you actually browse through the different pages on your site, It's goes extremely malformed, for example on your contact us page, none of the CSS seems to be working. Your bottom left corner of your main div could use some work, the harsh corner is slightly disruptive.
Good points, I do like the grey on black seperation of sub-content (your adverts). The background is nice simple, but still contributes to the overall feel of the site.
If you are going to try to advertise a template design company i defiantly suggest lightening the whole thing up, greys on whites seem more professional looking than greys on blacks. An excellent start, keep at it!