There are a couple of things I might consider adding to your store, but overall good work
One thing to consider is adding reviews. If you add reviews it will help keep your customers on your site. If your customer needs to leave your site to do research on a product they might not come back, adding reviews can help with that.
An important thing I couldn't find is a favicon. A favicon is a simple thing you can add to your site to help enhance your brand
Did you think about adding a FAQ section. If your customer can't find an answer to their questions they may not buy from you. Adding an FAQ section will help to add trust, and make it so your customer doesn't need to leave your site, to find an answer to their question.
An important thing I couldn't find is a contact form. If you have a contact form it will help add trust to your store, and the more trust you can build with your customers, the more likely they will be to buy from you.
After carefully reviewing I don't see an always visible buy button. Every extra step that a customer has to go through, makes it more likely for them not to buy from you. If you are getting a lot of customers coming to your store, but not buying, one of the reasons might be that it is just a bit too hard. If you can make your buy button always visible (especially important when people are on their phones), it can help more of your customers want to buy from you, I wrote an app that can help with that https://apps.shopify.com/better-sticky-checkout-button-increase-your-sales .
I wasn't able to find social media links. If you add some social media accounts to your store like Facebook or Instagram, it will help build trust with your store and help get more customers
Did you think about adding a blog. If you had a blog more customers might be able to find your site, and even if they aren't ready to buy at the moment they are reading your blog, they are more likely to buy from you in the future.
You might consider adding a sense of urgency. Imagine you are a customer browsing an online store. Maybe you are ready to buy maybe you aren't. But there is a good chance you aren't in the buying mood at the moment. If you add a sense of urgency to your store it can help more of your customers to buy, and have them buy faster. One way you can do so is by adding https://apps.shopify.com/better-countdown .
An important thing I couldn't find is a return policy. Oftentimes when a customer buys something from you it won't be completely right, it would help to have a return policy
I wasn't able to find a support email address. By adding a support email address, you will be able to build more trust with your customers and give them another point of contact to talk to you with.
You might consider adding a custom logo. A custom logo makes your site look quite a bit more professsional, and it can help you sell more products.
An important thing I couldn't find is a way to collect emails. Adding an email list to your store can help you better market to your customers, and help to create a better brand.
Nice job on your all of your hard work so far, and I'm sure that just a few minor changes will really help.
Just so you know, I also created a tiny email series that has some tips on making your shopify store better https://mailchi.mp/7d8692283c12/shopify-conversion-course