Here are a few photos of concept art drawn by none other than Yasuo Otsuka!
The now 83 year old animator and character designer originally began work with Lupin III back in 1971, when the original green jacket TV series got a bit of an over-haul a few episodes in. He most recently worked the 2007 TV special, Elusiveness of the Fog.
Otsuka's style is undoubtedly my personal favourite. The characters appear comical and soft, but they are brought to life like in no other piece.
As much as we would just love to own one of those coloured pieces, the artwork is currently on exhibition in Japan.