I dont think your site is that bad too be honest,
i would maybe add more slides on your home page that auto rotate, so its visually more appealing
and at the top of your site have a header with a few buttons such as shop now and a contact us button,
its important to reassure people with a contact us button, instead of having them have to scroll down your whole home page to find it.
thats my only suggestions its a pretty decent site goodluck
Your biggest issue is you don't have a brand or given people a reason to buy from you. People can get shades anywhere.... why should they buy from you?
Product Page Feedback
Your store just needs some tweaks to take it up a level. Hope you found this helpful, if so please click "like" below to let me know.
The search bar needs to be enabled as it is not visible on the homepage. It should be placed beside the login and cart for a more systematic header view.
Some other suggestions for store optimization are mentioned below:
May the store optimization result in ample sales.