You know how there's a massive sun in the background that orbits around the skybox? I think it's a shame that it doesn't cast actual shadows.

Although it would still be constant daytime, this sun should cast shadows imo. I recommend leaving this as an optional graphics setting though, as I'm sure it would hurt weaker setups.

I think the wolver den levels also have a similar sun in the background? This change should apply to those too.

Starlit cradle could have the same idea with moonlight, but it might get too dark at times so it depends on how testing for it goes.