Did you know the new Aikatsu girls all have diamond-shaped hair shading? It's likely it's just because the cards are diamond-shaped this time but it's kind of interesting that Prichan S2 also had Diamond-shaped hair shading for all of its characters and they both focus on virtual idols (Even though Maria and Suzu were not virtual, they still have the diamond shapes in their hair).
Also in Prichan, Nijinosaki-san does not have diamond-shaped hair shading when her hair is down but she does when she changes styles later on.
I like the attention to detail when artists notice this and keep it in their fanart.
Also, Happy Birthday to Maira from Mewkledreamy.