The world feels great, and at times I definitely feel that the lighting changed to become much more moody, which felt great as a player.
Player movement felt a bit slow, I pressed every button on my keyboard in an attempt to go faster haha.
I Like the the way the world feels. The speed probably wouldn't be much of an issue for me if the world was smaller.
The physics of stuff. I found the little 3-pillar structure and tried to climb it. I slid up the walls but it always stopped before I ever reached the top :(
I wanted to run into the creature but I had no luck these times. Maybe some info to guide the player a bit would be helpful.