“Jaja Uma Paradise” Front Cover (Regular version)
“Biyuuden Single Best 9 Vol.1 Omaketsuki” Front Covers
“Nari Hajimeta Koi no Bell” Front Cover (Regular version)
“Yattaroze!” Front Cover (Regular version)

This looks like an All-Rika collection, with covers from her two current units. The contrast in styles between Viyuden and the Gatas is quite illuminating, after a fashion.