The theme looks nice but you have some issues that you need to take care of and put some more love in to it. First of all you should work on the padding on some elements (menu, footer headings, footer elements ). Second you should work more on the slider and make it fit the style a bit more. Third you should add more functionality and pages to the theme so you can give the customer more flexibility.
This is my opinion so please don’t shoot me .
Cheers mate and good luck.