Hi Streamer mech designs?

[Mafty]

Does anyone know of any sources that show the Hi Streamer mecha in more detail? They look very different from the designs in CCA and Beltrochika's Children (and for the rest of the franchise for that matter). Also it almost seems as though some of the characters are piloting different mechs entirely from the other adaptations.

[Seto Kaiba]

I did some looking but was unable to turn up any artbook that offers clearer views of Yukinobu Hoshino's designs from the novel.