Ooold exploration of a Birrin tank, which needs to be revisited for the book.

Used for urban suppression, it has a tall turret to intimidate the populace. This makes it vulnerable when a real fight kicks off, however...

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Birrin diving on a pre-Fall city.

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My first format test for the Birrin book: this direction would intermix narrative with key paintings and vignettes.

(Costumes/designs arent consistent as they are being worked out on the fly)

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Repost of an early sketch trying to figure out Birrin armaments

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Birrin basic body plan and run cycle.

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Birrin limb explorations: attempting to find a plausible solution to the structure of the rear leg, the main source of motive power.

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A few folks asked: rough scale of the Birrin.

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An old, never-completed concept for a top predator on the Birrin world.

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