A) Using copyrighted work without proven owner consent (plagiarism) is strictly forbidden, and you must credit all other artists work. In other words, if you're selling c/p textures or images post a link to the original image.
Please post links to any art that is coppied in the making of your art.
http://t0.gstatic.com/images?q=tbn:A...96s4gcxNNx_REX