Maybe you can read how some trustworthy web development/e-commerce/mobile apps development agencies write their solutions to get a better idea of what can be done, is it scalable or more alternatives, etc. Let's say, this tech agency https://acmex.co/?page=e-commerce-strategies in Singapore.
You can also check this out : https://help.shopify.com/en/manual/products/collections/manual-shopify-collection
Or type your question on Google/Youtube to find some tutorials.
Hope it helps! All the best, Kelly!
Most of your links in Main Menu and footer don't link to the right pages. This should be changed ASAP.
Home Page: This needs to flow better. I would set it up like this.
I love the slideshow image you used. I'm about to email you something that should really help you out. So look out for that.
Keep up the good work.
I see a lot of feedback you got last month hasn't been implemented yet. That would be the first place to start looking. Your product images being one of the biggest areas you need to work on along with your product pages.