It IS a fast compile, I'm personally hoping that the colours will become a little better on a -final compile. But I will probably mess with the colour correct later.
As for the wood textures, I did try. But it looks worse. It really does, it looks silly with lots of different wood textures thrown together, like a badly made patchwork quilt. I share your opinion, it does look monotonous, but it looks funny the other way too.
-final compile only casts more rays from the env_light entity *not* lights or light_spot entities. a non-final hdr compile will bounce the light much more, both blending and bouncing colours. a good complementary colour in that picture is red (green) which there needs to be more of as its a red base that blu is attacking.
as for monotony of the wood, throw in some paint/patch overlays. Like the red kind.
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