I hate the fact that the duct tape really hides the details. Will be going back to packing tape for the mock-up. My plan is to mock-up the individual pieces then when I like what I see finish w/hot glue... and maybe a duct tape overlay. Now to hang some ribs.
More hot glue and just the tiniest bit of trimming.
Angle is still a little off on the chest but I'm locking it in for now. I'm also starting to think about fit and finish. MCL34N's duct tape on cardboard idea seemed to have turned out really well for the exterior. I'm thinking about doing that and the going the extra step and adding a couple of coats of Krylon... or something a little cheaper. I would like to get as smooth a texture as I can with as little investment as possible.