So I had a thought of the World Tree Yggdrasil as a massive fortress at the literal edge of the world, the rainbow bridge reaching out across the abyss of space for the dead to walk. This is a little concept attempt and decided to work in another using the leaf into a single piece instead of a collection of random sketches on a page. A single leaf from the World Tree would be large enough to be used as a tent, the fortress is inhabited by Valkyries which I imagine to be hulking and nearly half again as tall as a person 7-9 feet. I'll try to figure out a unique design for them soon.