Welcome to the Community forum. Thank you for posting your concern here. I’m more than happy to look into this with you.
Based on what you've shared, I understand that your collections are not appearing as expected on your storefront. Once you create your collection, you will need to add it to your navigation settings for it to appear on your storefront.
Since your collection has been created but is not displaying on your store, I suggest ensuring that you have added it to your navigation. To do so, you can follow these steps here:
We also have a great video guide that you can check out here. In regards to your images, you can edit the collection display image, or change the order that which the products are displayed by following the steps listed in this Shopify Help Document.
Let me know if this helps and if you have any questions! In the meantime, I'd love to hear more about your business. What type of products will you be selling?
Did you add featured image for collections?
Just checking in with you here. I want to ensure that you receive all the support you may need. Please don't hesitate to let us know if you still require assistance.
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