The style looked like abutomato, and I found the same picture on their Twitter feed, so I put that as the source. I don't know if that is where the uploader got the picture from though.

"Ara ara"
"Ara ara"
"Ara ara"

HawkeyeNFO said:

The style looked like abutomato, and I found the same picture on their Twitter feed, so I put that as the source. I don't know if that is where the uploader got the picture from though.

It is, this has the same MD5 as the image in the tweet

There's more: https://www.pixiv.net/member_illust.php?mode=medium&illust_id=71756718