I'm pretty sure source is http://blog.sina.com.cn/czrdian, it looks like the artist's blog. I can't read Chinese though so I can't verify, but I think the artist's name can be read as diàn èr (电二). Alternately, their username is czrdian. I can't find a Pixiv on their page and SauceNao pulls up nothing.
Tl;dr: Tagging artist as czrdian until someone who can read Chinese can come up with a better artist tag.
*SnatchChrista......Hahaha, you naughty little missEh?UnimaginableHaha How about it!Asking for deathY~mi~r~I never thought that someone scary (← subjective impression) like Ymir would show that kind of expressionAh, what if I did the same thing to Mikasa, would she......I was thinking that I should take the initiative once in a while