This was done for Rhune Dawn of Twilight. It's the world tree that underpins the cosmology:

WorldTreeWeb.jpg

The genre is nordic stormpunk so a great tree with gear cog world gates fits pretty well. Each of the gear gates has a view into the world beyond, each a version of Midgard with an alternate fate. Here's a few of the gate logos larger:

BriglaessCog.png MidgardCog.png Niflaeheim.png Nachtland.png

For more on Rhune and for the rest of the logos you can read a blog post on it here or the homepage of Rhune: Dawn of Twilight here.

This is a commission piece and so is rights reserved.