Fantia works from the second half of 2023 and January (2023 works probably isn't ordered by date because it's the collection pack, January 2024 and on are at the end) Fantia : https://fantia.jp/fanclubs/20312
Pixiv : https://www.pixiv.net/users/19767205
Update : Added a few January Polka pics I missed, as well as 2 February packs