Rubric . . . always an interesting word.
right word used in the right place, but I get where teach is comming from -- too often abused in teaching circles as a buzz-word, often for someone to slap the teacher over the head about them doing it wrong . . . or so my teaching family members tell me (as an engineer, I'm the black sheep in the family)
. . . then again I hear it and my mind immediatly goes to "Dirty Rotten Scoundrels" . . . "Not Mother?" "No Ruprecht, not Mother."
Back OT!
Looked at the listing, and overall a decent decompision, favoing the scale side heavily -- I've got no issue with that -- but I have noticed you've got a slight bias toward fighters/bombers. While items D & E on scale features do increase the detail and complexity of the build, there are many airframes which don't exibit one and/or the other, which would immediatly put them at a disadvantage, before the builder even begins.
If somebody were to build a clean, scale electric Wright Flyer, complete with wing warping, regardless of their detail they're already docked 9 points.
Perhaps scale details should be "Additive points for any of the following: (insert list with max points for each type of detail, all in excess of 30 points)" with a maximum category score of 30 points.
Also on the finishing . . . how do you plan to gage your color/specular/smoothness accuracy? IRL, it's nearly trivial, but here it almost becomes more of an art of photography than a skill in finish.