Destroyer
Color scheme exploration
Early sketches, some more biological
If I had something specific in mind for an attack animation I would sometimes sketch it out like this
Never quite finished up this silly doodle of Gunpla Destroyer sprues
While the Mortar and Predator were finished first, they were done before we had solidified the faction designs, and the Destroyer was the first Heavy Union unit where I really nailed their mechanical language.
Final model by Nic Reid
https://www.artstation.com/artwork/V20PxX