A lot of these guys have/will require quite a bit of guess work since most of their reference photos show them as slightly detailed silhouettes. Since one or two of these fellows didn't have any sort of reference images, I had to pull their designs out of my ass. I also based their coloring on preexisting versions of their characters (ie Unicron Triology, G1, official concepts, etc). UPDATE: ACEO of "Bubbles", the 13 member with the energy sphere/barrier. Starting work on their size comparison charts. I'm tweaking minor details and colors as I go to make them more accuracte to the vague silhouettes seen in the show and their descriptipns from official texts.