Looking at the model I was experimenting with the other night and the feedback I had received I decided to go back and try again.
First, a wee pic of the Tamiya Weathering Master compacts:
This time I started with the Mud colour and built up first to Sand, then to Light Sand.
So the comparison pics. First up is the earlier version:
Here's the other side:
I'm not too sure how to treat the turret. I've done nothing to it and it does look a little clean (and dark) in the pictures. Without the daylight bulb it doesn't look as dark, and the pigment effects are a lot less bright as well. The joys of trying to photograph models!
Anyway, again, thoughts are welcome. I may try and pick up some of the liquid pigment washes that replicate dust effects. I would also welcome any comments on how exactly the rainwater streaks can be done. I've tried google and youtube, etc, but no further forward.