Druid banner - central green section

The single largest section in a single coloured thread is the lower central area, in green.  This has taken a while to do, but here it is!

First a bit of it, showing the transition in the design from the blue to the green thread:

And the rest:

All of the green and some of the blue:

Despite all the work that's gone into all that, it's actually just the background!  Next, I'm going to start on the major parts of the overall design.