There are a couple of issue with the cave assets here.
BlackLight and BlueLight do not repeat, there is a difference in color on the left and right which means when I line them up to make a never ending parallax you can clearly see a line where this asset repeats.
Also, this is actually pictured in your screenshot above, but there's a "glitched" artifact on one of the "spikes" in the cave theme (see bottom right of the cave theme screenshot above)
Any chance these can be fixed for an update?
Thanks