After much experimentation on Brettell Road part 1 and coming up with a working formula. Adding rain to part 2 was a much simpler process (although still a bugger to photograph mind you!)

View from the middle looking towards Stourbridge.  The method I have settled on is to spray everything that needs to be wet with a fine coat of Tamiya smoke.  When dry a coat of AK interactive wet effect is added and thats really it. Simple enough now but it took an awful lot of faffing about to get here!

View towards Dudley

This is the view from the old layout to the new one . While its not something I intended to capture when I took the picture it does show the elevation changes quite well.

Below a few evening pictures