First off, really good job. Here are a couple of thoughts.
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in your Portfolio section, I would have an image background of what you are linking to in each circle. It will make it look better.
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in your Testimonials section, I would make the grayed-out 225 x 225 areas wider if those are going to be pics. If they are just going to be colors, then ignore.
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I think that the Footer area should be as wide as your Portfolio area.
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Also, NEVER PUT YOUR ACTUAL EMAIL ON YOUR WEBSITE.
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Go here and do this: Secure Your Contact Email for Your Projects.
I hope this helps you.