Hey! I just wanted to let you know that someone posted your picture on Tumblr without a source and (as far as I know) without your permission. This is not the first time they have posted unsourced art without the artists permission, so I assume you haven't given yours.
The post can be found here and it is on the reposter's Tumblr blog, but unfortunately their askbox is closed so there's no way to contact them. I have reblogged it with the source and a little rant about the importance of sourcing, but as the artist you can take further action that will be more effective, if you want to. This is a form to fill out if your art has been posted without your permission on Tumblr. As it is against copyright law, you can get the picture taken down.
Thank you for drawing such wonderful art for the fandom!
WARNING! Carry on reading! Or you will die, even if you only looked at the word warning! Once there was a little girl called Clarissa, she was ten-years-old and she lived in a mental hospital, because she killed her mom and her dad. She got so bad she went to kill all the staff in the hospital so the More-government decided that best idea was to get rid of her so they set up a special room to kill her, as humane as possible but it went wrong the machine they were using went wrong. And she sat there in agony for hours until she died. Now every week on the day of her death she returns to the person that reads this letter, on a Monday night at 12:00 a.m. She creeps into your room and kills you slowly, by cutting you and watching you bleed to death. Now send this to ten other pictures on this one site, and she will haunt someone else who doesn't. This isn't fake. apparently, if you copy and paste this to ten comments in the next ten minutes you will have the best day of your life tomorrow.You will either get kissed or asked out, if you break this chain u will see a little dead girl in your