I like your design and the colors, but I am not so sure about the 3 images (statues of pre-Columbian Mexican artifacts) you used for the homepage. No doubt they look great, but I feel that it's of little relevance to the business?
Well, It does load long. Any way, the first impression is good. I like the use of color shceme and the menu. But something I didn't like at all is that hover with text on the big buttons. And also that hover for a:link is also totally out of your webs color scheme, and I have never really liked background property for a:links.
Any way, It's a nice web and you should add some pictures to content to make it a little more attractive.
Nice design, the only thing that seems majorly wrong with it is on the individual blog entry pages the footer gets all wonky and covers a bunch of text.
I am not sure that right sidebar on the home page works well at all. I mean it visually (graphically) of course. I do not like it. Besides other parts of the site are solved good, it looks all right to me. "Latest Case study, Latest blog entry & Latest desktop image" - the typeface was not the best choice, it does not fit there. I would change it.