Zita
I am pretty sure that this is how Zita was supposed to look from the beginning, save for the glowing nose, I added that now. she was supposed to be a large stocky creature, but drawing wolves all my childhood I had some problems with the stocky part

Madonna
A hellhound. Not really much change there, save for her now having a bat nose.

Singsong
I actually had a whole species reference for these guys but I can't find it anywhere. I know there was something important about their coloured tails, but I can't remember what it was, so I might as well ignore the whole original concept and turn it into a more dinosaur-ish and natural-coloured little thing.

Thing-o
Again not much change, save for me playing around with his features a bit. His old design also has wings, but when they are folded they are actually pressed close to the body, looking like wing markings.

I am actually really pleased with how these came out. Doubt I'll be using them for anything, but I'm glad I can turn my old designs into better ones, it feels good having this ability

I really love character design