It took me more than a year to come up with a rubric, and as an educator, I "do" rubrics every day! I took an open approach to it, and focused more on how I wanted to present myself than the clothing style itself. To me, it's a tool, not a rule, and I chose:
Form and Flow (a balance of structure and softness)
Energy and Ease (vibrant and sometimes dramatic, but always warm and approachable)
If the rubric doesn't seem helpful, sometimes making a list of style goals will help focus your shopping and remixing.