She's not from an animê she's an original artwork por Fluorocarbon on Pixiv, however it would appear they for some reason don't keep all their art work up, or I'm somehow missing it I don't know. I found the picture you posted on deviantart (the user uses the watermark in the picture you posted) and they claimed that the original picture (they only took out the background) was posted por a person named fluorocarbon. I searched that name and I got many results of people posting other works por this person, along with their pixiv, but on their pixiv I didn't see a lot of pictures people had reposted. I also looked the name up of zerochan (where the person who posted the pic you have on deviantart claimed to have found it) and I didn't find this exact image either, but under the same artist and with similar style. So I can assume for one reason or another they don't keep all of their art up, but I believe that to be the person who made the original of that image. Long story short there is no anime.
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