Ｒｅ：ゼロから始まる異世界生活 Lost in Memories.
Shion (シオン) and Lilac (ライラ) cosplaying as Mystery Treasure (ミステリー・トレジャー) outfit Jeanne (ジャンヌ・ダルク) and Jeanne Alter (オルタ).

Patreon highest tier reward drawn by trujek:
twitter/true_jek_art
https://truejekart.tumblr.com/

Source: https://www.pixiv.net/en/artworks/138208910