May not be resold, traded, or distributed unless specifically stated otherwise. Can be given away. Not to be included in character sales, but can be included in character giveaways. (that means for free, you’re not accepting anything, art, services, or payment, in return.)
Reference sheets and other free linearts are welcome to be turned into poses unless otherwise stated.
May be used on chats and forums as long as credit is given where due.

If you scroll down...

"You may sell markings on the following references as long as you keep the copyrights on it:
http://fc01.deviantart.net/fs71/f/2012/219/3/2/doodledog_ref_by_cuon_alpinus-d5a5y7o.png"

(:

ah alright carry on then ~

um i'd like to purchase this lil guy if its still open :3

yep, its still for sale. (: send away!
if you could include the paypal fee, that'd be great (1.33 total)

sent!

received thank you! (also thanks for the lil extra :D)