Really appreciated on your work so far. But there are few corrections which we need to look in
Firstly, I recommend you to make the banner auto side which may get professional look .
Try to increase the category space after the banner by providing different kind of collections and also content related to it.(Next to Banner)
Also try to highlight the Header and footer sections in order to make difference from the category by Redesign( adding good theme color to top and bottom).
In the purchase page lot of space is consumed due to product description. I suggest you to adjust the description in a nice manner and the Rest of the space will be used for other purposes(Like RELATED LIST or FEATURED COLLECTIONS)
I suggest you to provide List of Related products Since it helpful in improving your cross sales.
It is appreciated that you are using online promotions which may help for your store in boosting the sales further.
It is Good that you have provided terms and conditions, Refund/Return POLICIES ETC. But I didn't find Terms and conditions checkbox at checkout. This agreement box may avoid the issues relate to Refund/Return policy from the customers. I Recommend you to install Terms and conditions app(agree terms) .
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