So, is the title referencing the "Dragon" 'mech or Thomas Hobbes' work? Schwarzwold's quote comes directly from Hobbes' Leviathan. While Leviathan is the sea based mythical monster, the more I watch Big-O, the more I wonder if the Hobbes work isn't closer to the truth. Although, the leaflets are of a woodcutting used to illustrate a 16th(I think) Century copy of the Book of Job.
Unlike many anime series, Big-O operates at a lot of levels.
The dragon-like 'mech itself leads me to ponder. Why is it so weak? Unless there are hidden or presently inoperable weapons, it looks to be a purely melee design; even more so than Big-O. No ranged weapons are visible.
The lack of armour plating on it is striking. Everytime I watch the episode, I have to ask myself, WTH is a charge in and melee unit doing without any armour at all... particularly without forward plating. There isn't even any armour plating on the head area, though. The chassis does seem to have unit number, 17, on it, so it would seem that what you see is what you get.
Based on the series and plotline, it appears to be a prototype/archetype of something... though I don't recall seeing a "finished product". However, in some of the episodes these dragon-like units are seen fighting Big-O's.
That being said, the 'mech still seems pretty weak. IIRC it and the 'mech from Bring Back my Ghost are the only two 'mechs which have been outright annihilated by only the eye lasers. Gotta **grok** to be the pilot of a 'mech destined to lose in a series 