I just wanted to say that this would reverse the ranks. For example, if they got all 5s (Design: 5 Theme: 5 Originality: 5) then the sum will be 15, after dividing by the amount of ratings (73), it will be 0.205 so the final will 4.795 which is lower than 4.932. This means higher scores will lead to a lower average. Anyway, by the time I wrote this, an overall ranking has already been added which is calculated by averaging the three scores: Overall = (Design+Theme+Originality)/3.