Good Evening @Seller_8WD90AQIKKxcQ, I wanted to follow up with you regarding your question about image quality. The technical requirements for an image are listed on Product image requirements help page here.

Every product on Amazon must have at least one image. We prefer images larger than 1,000 px on each side to allow for zoom, which has been shown to enhance sales. We also prefer images are provided in the JPEG file format. We recommend having at least six images and one video of the product.

All images must be:

• Images must be 500 px to 10,000 px on their longest side
• Images must be provided in JPEG (.jpg or .jpeg), TIFF (.tif), PNG (.png), or non-animated GIF (.gif) file formats, and
• Images must be clear, unpixellated, and have no jagged edges.

If you have a specific ASIN in which the image quality is not to your liking and have tried on various occasions to update it using the Image Manager Tool, I would recommended reaching out to Selling Partner Support and see if they are able to troubleshoot the image quality. Once you file a case, feel free to add it to this discussion so I may follow along and provide additional support when the case closes.

Don't hesitate to reach out with any outstanding questions about the information I have provided above. Have a lovely rest of your evening and take care. Sincerely, Cooper_Amazon