I recently just did some creature concepts using this technique: natehallinanart.deviantart.com… It's a quick and easy way to add some creepiness to a painting and I thought people would enjoy learning how to paint spider webs without the pain of painting each little thread. Hope it helps!
Use the download button to get the brushes I used.
Make sure to check out my FB art page for more art and art tips.
Thank you! I'll put it on my list of 'Tutorial to do.' Rock should be easy enough. Skin would probably require a few tutorials because of it's complexity.