Part of the artwork from the /mlp/ con 2021 'CCAE' artpack. In short, it's just a bunch of artworks of /mlp/ con's mascots. Now publicly available for personal use only.
Most of the artists were mainland Chinese artists, which offer their commissions on the mobile 闲鱼 app. For more information about the artpack, https://forms.gle/sce7PvFmAKqKc72Z7