Amazon allows Dropshipping through them. Just make sure you follow their dropshipping rules. See our solution center about this: https://linksisapp.freshdesk.com/a/solutions/
We created an app to help merchants import products from Amazon to Shopify and it includes other features that will help you increase sales. See https://apps.shopify.com/linksis
There are many dorpshippers add products from Amazon, and use the original photos.
You can use ShopMaster.com to import Amazon products to your Shopify store easily.