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You've made a very good work here, the only things I would change are:
I would vertically center the logo to the navbar, It would look better if it were evenly spaced.
I would add more top and bottom padding to the "Clients, our expertise, from our desk" area , the section looks a little tight, let the elements.
I would align the "Take a tour" button to the right instead.
That's it, very simple things to polish a very well crafted design.

thanks dude will do the changes u suggested :) hope u have given me ur vote...