Answer 1:
This game takes place in another dimension, with a planet different from Earth and, consequently, a different type of solar system.
For this reason, the lighting at each stage of the day does not follow the same logic as in the real world.
The images are only there to help the player understand the time of day!
Answer 2:
Developing the time of day is a lot of work. I simply copied the “Afternoon” stage and pasted it into “Twilight”!
In short, I was very lazy when creating the stages of the day for the game!