If you like to give a numerical score to each essay and have some sort of actual basis for doing so, you might consider using this form. I have devised similar ones for presentations and for oral interviews.
MICOLLAC 2016 MATERIALS LINKS
1. MICOLLAC 2016 Presentation Materials: Writing Textbook Extract (Unit 6 Film Review Essay)
2. MICOLLAC 2016 Paper: Teaching Writing to Beginning-level Learners (Content of Presentation in Paper Form, with Appendix of Bonus Templates, etc.)