I supposed it's only temporary image or cover from photobook but when I saw it at Disc Station I changed my mind. They have official covers earlier than many other online stores (they had Koda Kumis's Best First Thing hq covers before information about Kumi's new album was add to her official site) and if they haven't official cover they adding white temporary image with "now printing". So I'm sure on 99.9% it's official cover but probably
it's only cover of paper-box with first edition package (album + photobook). Here is bigger version: