My flatmate was resorting out his music the other day and was irritated that he didn’t have any consistent album art for his MLP music. As such I made him some.  
I am aware that there may not be a season 10 but I can hope
 
Download contains the individual covers all at a 2500x2500 resolution as a zip.
 
Update:  
There is an album image for the movie, I just forgot to include it in the preview image! :P Sorry about that, here is the link to the preview of it I added to derpibooru.
 
The link is still the same and the full resolution images are still in zip download on deviantart.