back in 2014 I made a size comparison chart of some Redwall critters:
https://www.weasyl.com/~briarwood/submissions/349953/redwall-species-lineup

this updated version from 2018 features a wider range of costumes and species and is now the most viewed thing I've posted on FA and DA by a pretty absurd margin. individual shots of all the critters are posted in this FA folder for your perusal:
https://www.furaffinity.net/gallery/briarwood/folder/533034/Redwall/

maybe I'll make a third version sometime, idk