Too bad we lost some images from talented artist.
Anyway with something bad comes something good and as a matter of fact, it made me research again the japanese web and I found someguy who seems to be an early fan of the serie.
Now he is drawing about PSU but there are some funny cameo and, it's crazy to see what he is capable of.
http://hoshimeguri.sakura.ne.jp/PSU/
Well, it's in japanese... but I'll translate the nei pictures soon
Also, here are some nice drawings (no need to speak japanese for that link)
http://ephemera.mitoa.net/gallery/