I developed this Rubric that can help in assessing students within the 4 strands of Arts: Dance, Visual Arts, Music, Drama (Readers' Theatre), as well as Time Management. You could have the students assess themselves on here and/or just use for the Teacher's assessment of their work.
I used the BC Curriculum to develop, but this would work for any Fine Arts provincial or state curriculum.
It can also be used to have students use this and then self-assess themselves. Core Competencies reflections or regular check-in assessments.