The world seems empty, there are traders but nothing more human.
It would be nice if there where human events like wandering traders, bandit raids, people who are in struggle(fallen into a cave, getting attacked by animals, starving) and you can rescue them to get a reward.
Perhaps not villages, but camps with local people would be nice and a faction system. If you are using resources in near of their camp they are going to hate you and attack, if you are trading with them, they will like you. The camps are scaling their tech level with you, if you have constructed specific items, their camps will upgrade.
There are also too few mob varieties, it makes the world boring.
Mobs which are missing:
Cow, Corcodile, Bird of Prey, Ostrich, Goose, Kangaroo, Horse, Camel, Bear, Beaver, Seal, Whale, Fish, Monitor Lizard, Crab, Rhino, Elephant, Monkey, Parrot, Turtle, Anteater, Lion, Hippo
Small Animals like Crickets, Rats, Ants, Sparrows, Butterflies
The Biomes doesn't look different enough, especially deserts and dry zones just look like empty and not really like natural landscapes, specific structures, rocks, plants are almost missing. There should be also specific music to the Biomes, standard soundtrack doesn't fit well with them, also with the jungle Biomes.
The pine trees doesn't look much different from birch or oaks, the leaves should get new textures, not moving so strong in the wind and a new overall shape. Almost all trees in the game are looking not much differentiated enough. Needles don´t move so strong like leaves.
There are maple and pine standing together, almost looking the same shape, only textures differ.
The whole game colors are looking bland and colorless, why a sepia option to make it look much more boring? Saturation boost option would be much better.
What I most don't like about this game are the clouds. Too massive, too high, ugly, transparent giant skyscraper-like objects. It would be better if they where much more flat, not transparent.
Second worst: Skin color. You cannot look like a human, only in a decaying state, like a zombie. Please more human like skin colors: sand, pink, brown, black.