Skies have always been a bit annoying to me, almost seems like I can't get it right and I keep tweaking, then I change it, then tweak it more.

This looks good, I like the amount of light coming into the cave. Ultimately you have to be happy with it. Save the file as a different file name......then, change the sky & TWEAK IT a little. LOL

Again, nice work & good luck.

___
Ockham's razor- It's that simple