Pheeewww, after 5 hours on stream doodling this up I've got myself a nice little size reference for the 4 characters I use most. This has been a long time coming and even after finishing it up I feel like some of the sizes aren't 100% accurate but it's certainly close enough. I'll post each of these images individually as well, simply because there's some details that are a bit hidden behind other characters~

Ranger: http://www.furaffinity.net/view/32769861/
Theresa: http://www.furaffinity.net/view/32769920/
Ine: http://www.furaffinity.net/view/32769962/
Vial: http://www.furaffinity.net/view/32770018/