Worth noting that even though this is fan art, the box is official art after Chika was appointed the ambassador for Nishiura Mikan (owned by JA Nansun). Source: https://www.crunchyroll.com/anime-news/2020/02/12/love-live-sunshines-chika-takami-appointed-as-the-ambassador-for-nishiura-mikan-in-izu

Also, a stand even survived a protest from those who thought some of the promotion art was over-sexualized.