This one isnt done with distress technique , but they are rocks , so might as well place em here 
the hole leads to a cave 
Northstar: 
Good effect. I think that if you add a some gritty ColorBump to the red material, it would like like rusted cast iron.
Slosh: Great idea with the three-layer picture. I’ll definitely be trying that in the future.
Really Cool Images Man,
Im using photoshop and Dreamweaver but am desperate to learn how to build 3D graphics and use them on the net. I stumbled accross this site by accident, very cool stuff. During the day time I work for a company called Design Clinic, we design and make alsorts of suff from cast resin, if your into skulls check out our Skulture range at www.designclinic.co.uk
Great textures!