Still very much working on it, the progress percentage is a wild guess.

I'll try and list all the textures I've done.

All textures are based on real New Zealand things.

Mobs:
Cod - Blue Cod
Salmon - New Zealand Long-fin Eel
Bat - New Zealand Long-tailed Bat
Pig - Kunekune Pig
Wolf/Dog - Kuri
Dolphin - Hector's/Maui's Dolphin
Chicken - Takahe
Brown Mooshroom - Werewere Kokako Mooshroom
Parrots - Kokako, Tui, Kaka, Red-crowned Parakeet, Banded Dotterel
Tuxedo and Black Cats - Slightly altered to look more like my old cats of the same colours
Squid - Wheke (octopus)

Blocks, plants, etc:
Brown Mushroom block - Werewere Kokako
Rose Bush - Kakabeak
Lilac - Kowhai
Brown Mushroom - Werewere Kokako
Cake - Pavlova
Paintings are now iconic NZ artwork, logos etc along with photos and artwork from myself and friends. (List of artists to come)

Items:
Potato - Kumara
Pumpkin Pie - Mice & Cheese Pie
Bread - Weet-bix
Cake - Pavlova
Apple - Kiwifruit
Golden Apple - Golden Kiwifruit
Wooden Sword - Patu
All spawn eggs are textured to match the retextured mobs

Again, I've likely missed one or two things.
I'm still hard at work on this texture pack, all textures and ideas are subject to change and I'm open to suggestions.