It's on my F.A.Q.:
Q: But then can I share your artwork with proper crediting?
As you can see, dA have an option of sharing in each artwork. And you can see that I've that option on. So, if you want to share it by using it, it's ok. Otherwise, downloading and uploading in other sites, its not ok without letting me know (It can reach me as an art-theft notice, you don't want that. Neither do I)
Ok, I will scrap that last part, since some people are STUPID enough to think they can do whatever is on their minds with MY work and then, even insult me because I didn't read their precious little f*ck*ng descriptions (which, in case you don't know, in youtube you have to press a button to see the rest of the description, and I don't believe many do!). Insult me? You use my work, I ask you nicely to put up a credit and you insult me?
You want to share my works? Use the available LINKS on dA. No more use and come to tell me you did it and then act like assholes, when I politely ask you to do put up a credit because I didn't find it.
NO USE OF MY WORKS WITHOUT MY PREVIOUS PERMISSION.
You can't use them for your videos/t-shirts/bands-sites/whatever-you-want with them! They aren't your property, they are mine!
Specially if you are a badass, know-it-all, that goes insulting me.
You want to use them? BUY THEM.