Back on late 2004 -right before its demise- ex-Transformers publisher Dreamwave Prod. started an Energon profile books project:
"Energon: more than meets the eye" (MTMTE)
I was commissioned to do many interior artworks for single characters, as well as the 3 book's covers, which were meant to be each 1/3 of a bigger picture, a sort of all-characters poster (just like the Armada MTMTE covers, penciled by Joe NG)... above the 3 covers combined!
Medium: no.2/HB pencils, markers on 3 11x17 artboards.