What work exactly did you do?

You just used a wordpress theme. I just hope you paid for it instead of using a nulled version

I think if any1 should ask for a design review of this site, it should be the owners of themeforest.

Anyways: the theme looks nice - there isn't much you can do wrong when using a professionally designed theme.

However, one can see the "stuff" you added to it, because it doesn't match the whole site design in any way.

Take the testimonial "box" as an example: colors not matching your site, font not matching your site. Why didn't you try to create something nice yourself instead of adding just another dumb plugin?

Or the "order" page: Its not really encouraging users to actually buy.... would you personally buy something by the looks of that order page or would you think its just another "seo kid" trying to sell worthless stuff?

Butthe most important part:

From a real SEO Service, I expect that they know what they are doing and your site is not even close to be SEO Optimized:

-No meta keywords (although they are not that important)
-No meta description (very important!)
-No structural header hierarchy (there is not even a h1)
-No alt tags on images (title tag but no alt tag - why???)
-No internal deep links (very very important!)

So overall, for a SEO service, customers could expect that you know what you are doing, but by judging only your site, you have absolutely no idea!

Dont take it personal, its just a honest review!