I like to use the Dataform module for group peer reviews (GPR). Itamar Tzadok initially published this module with three phases (submission, review, revision) and two grades. The submission and revision phases were jointly graded. Last weekend I was able to add a third grade so that each phase can be assessed individually. I have attached a preset.
Please note: Group peer reviews only work in Dataform version 3.0.4, not in the current version 3.3.2. I still hope that GPR will be possible in the latest release as well. The file uploaded during the revision phase is not displayed in the grade view for the teacher, only in the overview view.