Hey the site has a nice simple layout, the we are we do we did we will look kinda pixaled this might be on purpose but it dosnt look that good plus at first i didnt know that they were meant to be navigation buttons i though they were a slogan of sorts
Your idea of having you examples in monochrome and only having colours on mouse over may add a nice touch but dosnt really make a very good portfolio becuase the user dosnt really have a good overview.
The contact us button is "hard to find" which is not exactly what you want.
There are no major error exept small grammatical one which can be sorted out with a simple read through.
another thing i like is how on the left and right hand side you havnt picked white but a slightly differnt colour with tiny dots in it (great effect)
I give this website a 7/10