Artist. On her/his pixiv profile page, this artist wrote her/his opinion about re-uploading her/his images.
Japanese name: 梅初月 (Umehatsuzuki)
The other names: "bochi", 黒胡麻 or *くろごま* (Kurogoma)
Circle name: あなろじっく (analogic)
Site name: "in small box" or 小箱