Can you please make a tutorial on how to make realistic materials, or a least a screen shot of how you made it all look so real? This looks so accurate and would be my favorite tutorial! Nothing these days done in Cg looks quite real enough with materials and lighting. Your work looks very real and think myself and others could really benefit from your knowledge.
Hmm, as long as they aren't using it for commercial purpose, its fine. If they're selling it, you should take action against them.. They haven't even mentioned your name and removed your watermark, that bit is kinda annoying. Artist should be given credits!