Daily Sketch - Cumberland Trail Sandstone

The past few nights we've been camping near Chicamauga Creek outside Chattanooga.  The sandstone here is unreal - laced with these iron bands, and colored grey orange and pink.

As I look back on this one, I see that it all seems to be in a very narrow value scale.  I suspect part of the problem might be that the waterbrushes inevitably dilute whatever color mixes I've created, so they're excellent for washes on the lighter side, but I need to figure out how to augment it with darker values.  I picked up more cartridges for my brush pen, so maybe some India ink will help.

Also, it turns out water is super challenging to observe, let alone paint.