yep you're absolutely right, i did add red lenses, but it seems they've been drowned out a little in post/colour correction, here's the raw render out of keyshot, you can see a slight reddish tinge on the lenses on the front facing one on the far left.
as @Cerbera pointed out not much changed since that thread apart from some upper dome details, but the basic geo is the same heres some with sub d off / on, i think looking at it now i could have improved the topo/flow but i think it will do for now.