The present "grass" texture looks a bit tiled. I also feel like the Forerunner textures could use more bumpmapping so they don't look so flat; right now they look like they came straight from Blam! proper, which is not what you are trying to emulate I don't think.

Other than that, this looks pretty good and has come quite a way from last time you showed it off.

Fake E: Was that music from Inception?