thewayneiac: Shin-seiki and I made quite a discovery awhile back. The Angel Ramiel is directly based upon the Super-X mech from Future Police Urashiman. Until we made this discovery, we thought Ramiel was supposed to look like the Blue Water from Nadia: The Secret of Blue Water.
Quiddity: I was quite impressed that in a monster of the week style show, the designers would go the exact opposite route, and rather than make this episode's Angel complex and frightening, they made it about as simple as possible, a giant floating 8-sided diamond. Although with the next Angel in episode 8 the designers would go right back to the more cliche method of monster design, they did rehash the simplistic design later on in episodes 13 and 24. Although the difference being that in both those cases the designs were a necessity of the plot.
