Additional details from their Twitter account:
After months of preparation and anticipation, the Tower At Nine interstellar spacecraft launches from its home of Ren, beginning its acceleration to near-lightspeed to cross the vast expanses between the stars.
https://x.com/teeteegone/status/1851976871879094313
And a cutaway view can be found here: https://old.reddit.com/r/worldbuilding/comments/1fyzmn0/anatomy_of_a_spacecraft_the_tower_at_nine/
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Additional shots and cutaway can also be found here: https://www.artstation.com/artwork/x3d8GY