I don't mean to be insulting, but I just realized something. Your kit isn't accurate to the TOS episode. The "upper decks" should be more rounded in the back, not have an overall teardrop shape. The guys who did up the VFX used an AMT 1701 kit for Constellation - a kit which has a rounded aft upper decks area.
Just sayin' is all....
Otherwise, very nicely done! Can we purchase the base separately, by any chance? I definitely plan to purchase the Tholian Kit, regardless!