I know I said I was going to work on the rusty grate texture, but life has a way of making sure that you don't get to do what you want to do, so I worked on improving my trees, and I increased the lighting just a tad. The tarmac around the drain is also paler. apart from the rust that isn't so great, I'm going to have another look at the basic rock texture - see if I can't find a way to stop it flip-shading on me (when one moment its rounded bumps, and the next its rounded hollows).

Bloodrock NEW 01.JPG

As a matter of interest, does anyone else have the flip-shading effect with this map, or is it just me?