I used the installation profile to create a site exactly like the demo site and I noticed the following problems..

1. The image of the 'Back to Top' button is not visible when I scroll down the page until I reach the end of the page. Then becomes visible and works as it is supposed but when I refresh the page I am having again the same problem.
2. Only at chrome browser the images of the 'About us' section spins when I hover the mouse but when I move the mouse away the images disappear!

The above problems are not exist in your demo site but the source code of the first page of your demo site is not the same with the source code of the first page of the site I set up with your installation profile!

Thanks,
Chris