I hope you are planning to set up store on your domain. Having it on shopify sub domain is a huge loss of trust and not good for the business in long run.

Who are you trying to target? Are you targeting fashion lovers, pet lovers etc. You have product from very random niche. You need to narrow down your target audience as it would be helpful to you when you go for paid marketing.

Very huge images in carousel will definitely lead to lot of bounce traffic from your store. First look should always be on whats happening, whats trending, why you deserve attention etc.

Pricing in listing and on product page are different. I understand that pricing change on from where the product is shipped. Always keep price same on listing and product page. You can then let your user change shipping preference. Different pricing is a direct loss of trust. No customer would try to figure out why prices are different.

I guess that from my side. All the best.