Album Covers Problem

[blackcemre]

I have placed the album covers in high resolution, but the album covers do not look crisp.
(iPOD Touch 6 and iPhone 6S Plus)

 

[Gav2k]

Have you sync' via cable or are you using the cloud?

 

[blackcemre]

Have you sync' via cable or are you using the cloud?

I am using a cable
[doublepost=1480263750][/doublepost]Is there anyone who can help, or the idea?
[doublepost=1480265045][/doublepost]I add it at 1500 * 1500, but the album covers do not look crisp

 

[blackcemre]

Will you drop the album covers you added?