For the stores to accept your artwork it must be:
A JPG/JPEG/PNG file
A perfect square, ratio 1:1
A minimum of 3000 x 3000 pixels, the maximum you can have is 6000 x 6000 pixels
A large, high quality image
Your cover art cannot be:
Blurry
Pixelated
Misaligned
Oddly rotated
The image can’t contain:
The name or logo of a retailer
Any registered trademarks
Copyrighted logo types
Content you don’t own the rights to
The word ‘exclusive’
Production credits
Any reference to physical packaging, or it being a digital product
No pricing
No pornographic images or links to pornographic websites
Any promotion for another product
Any misleading information (e.g. it can’t include another artist not featured in your music)
No reference to content that isn’t there
No websites or URLs
No offensive imagery or symbolism
If you display your artist name & release title
The text must be exactly the same as what you enter in the Release Information. Keep the text as minimal as possible
Do not abbreviate your artist name (unless that's how it's written in the Release Information)
Do not include any production credits