Comment on ProtectArt's profile

hello, I was wondering if you could please look at the user whitehawk420

whitehawk420.deviantart.com/

He has been taking artwork from other artists, claiming that they're his and not giving proper credit the actual artists. A few deviants and I have tried to talk to him about it, but he keeps blocking anyone who tells him to stop and give proper credit and hides our comments

Here's an example of one of the works he stole
Original -> www.pixiv.net/member_illust.ph…
Stolen -> whitehawk420.deviantart.com/ar…

That's one example, but there more stolen artwork then that. 
If you could take a look at this deviant and do something about it, it would be very much appreciated. 

Thank you