Overall, the site looks good. Good job!
I would suggest you get a graphic logo, rather than a text logo. It would be more representative of your products.
Why do you have "Catalog" and "All Collections" on the menu? They show the same things and are therefore redundant.
Search is also redundant since you have a search icon on the header.
Love your product images though. :)
Don't forget to fill your FAQ page with content before you launch!
Your social media links don't seem to be working. If you don't have social media pages yet, then I would suggest that you remove these for now.
Congrats on getting your store ready to launch next week. That is not easy to do. Here are some ways to improve your store:
Product Page Feedback
Keep making improvements to your store. Hope you found this helpful, if so please click "like" below to let me know.
I really loved the sticker bomb video you have on your homepage - it's authentic, made by someone who is relatable to your target audience and shows the process of using your stickers - very good for the conversion rate! You have a narrow niche and your branding is consistent with it - you are nailing it :)