Well, i dont know if it's what you want, i'm not even sure to understand your issue xD
To keep your initial capture from kingdom new lands as an example,
It's not working if you have this layer order ? (from back to front)
1/ Moon + stars etc
2/ moon light
3/ Clouds
4/ Rocks
etc
my guess is, as long as the moon light layer is not in front of the cloud layer, the moon light should appear like it's far from the clouds isnt it ?
ps: bcs u're using a beta release of construct i cant open your c3p sorry
ps2: sorry if it's not relevant, i'm not sure to understand your issue :/