Attached Link: http://www.renderosity.com/tutorial.ez?Sectionid=7

You don't mention what program you're using. Assuming you use Poser (since you posted in the Poser Forum), there's a lot of general purpose tutorials you can access thru the masthead above, or the tutorials link even further above, or the link I posted in this message is a shortcut to the Poser/Offsite/Tutorials listing. If you come across a picture in the galleries or in one of the postings that you'd like more info on, you can always IM the creator or just post a general question about that specific texture for more info. In addition to textures and lighting, the 3rd key element to realism is Bump mapping, btw - another term to watch for among the tutorials. Good luck with your art, and welcome!