Alright, so... glad you had fun!

The shadowy looks a lot better. I think for the light, maybe make an "overlay" (rather, "underlay"?) type layer... dark, almost black, but in a yellow-family, if that makes sense... and I'd do it over the entire underground area, but make it a gradient-ish thing toward the "light" areas... up to a soft, nearly orange-y yellow... like...

Trying to think of something besides distant candlelight that has that color....

Maybe I will find it in my palette >.<

Anyway... any fade to white, I think, is going to make it look too bright for underground... and as Lyrillies mentioned, I think the change is too... abrupt?


Either way, it looks great (better than I could do, lol, even though I'm picking at you/it!)