Who designed Escaflowne's Guymelefs?

The mechanical design of the television series is credited to Kimitoshi Yamane and Junya Ishigaki, with Hirotoshi Sano as mechanical director. Yamane would go on to design Cowboy Bebop's Swordfish II; on Escaflowne his brief was stranger: mecha as armor, powered by jewel-like Energist cores, flown by standing pilots in harnesses, their interiors fitted out like clock mechanisms rather than cockpits.

The title machine itself is older than the series. Shoji Kawamori's early-90s design study Air Cavalry Chronicles had already imagined transformable flying cavalry for the kingdoms of Fanelia, Asturia, and Zaibach, and Escaflowne's three-stage transformation, knight, flying dragon, high-speed flight, is the direct descendant of that work. Kawamori almost never discards a design; the Chronicles' fighter concepts resurfaced in his Macross work as well.