I don't believe this person used a filter. I think it was coloured with coloured pencils. Some parts are different from the original, and there isn't a way to have that replicated in a Photshop filter. For example, the berries on the right hand side of the picture, near the subject's head, does not contain the same number of berries as in the original picture. These different are usually attributed to the fact that the artist probably didn't want to replicate ALL the berries, and thus got tired and lazily sped through it. I know I've done that before in a detail intensive drawing, especially background stuff.
The hair is drawing differently around the nape of his neck; the original shows two strands layering over his neck, but this person only chose to do one, and not only that, but to pretty much hide most of the neck.
The face on this picture is narrower than on the original, and several hair strands are drawn more thickly that that of the original picture. The patterns also differ, especially when it comes to the sizes of certain things (the white lines are off, the blue oval in his sleeve is much smaller than the original).
However, this doesn't make the person completely innocent. It's possible that there was either some tracing involved, or she's very good at looking at a person's art and copying. I've overlayed the original and this one, and in some places the lines match up perfectly, however in others, it's skewed. It would not surprise me if she used a grid to do this. It's understandable if the pictures themselves are off as well, since this looks like a photograph, and those are subject to all kinds of distortions.
tl;dr I think she coloured this on her own, and it wasn't a Photoshop filter. However, it's possible she could have traced it, either in whole or a part of it, or she's surprisingly good at referencing.
Do I believe she deserved a DD? No. She's definitely not linking back to the original source, and overall this isn't completely original, only a copy. I think in terms of her colouring ability, however, she is good. She just chooses to not make anything original with it, which is a shame.
And the fact that the DD was removed, but they left the STOLEN.PICTURE.UP. is depressing. C'mon DA, you defend the people who break the law, yet you completely ignore the people who buy stuff and pay for shit on the site, and THAT'S the stuff that is giving you your fat paychecks. If you piss them off, they'll all leave, and there will be no more money!
Eventually you will be sued, and unlike what the rules say (and I actually saw this), you won't get any money from the people that sued you.
Actually try to please the people that keep this site running, instead of helping people break the law.
the picture can't be taken down until the original artist asks to, and the original artist is Kazuki Yone, a famous japanese artist who probably doesn't have time to go around the internet to make complaints. Besides this is a reproduction of the work, it's not reposting of the original so it could be considered fanart. It's not really such a big deal that it stays on the site as long as the artist doesn't receive praise like it's their original work