So, I decided that I should post the picture of Calamity without the Han Solo vest, and just the Battlesaddle.
It look me forever to figure out how it could actually work the way it's described in the story. The reins are connected to the front, and all the cables that connect the reins to the firing mechanism in the barding on the flank go over and around the bits that make it a saddle. And, of course, all the technical gubbins that make him able to fire are in the armor on the flank, so that it obscures his (lack-of) a cutie mark.
Even so, I think it looks much better with the Han Solo vest.