Yeah, I see what you're saying. If I find time I may make my own version to show how I interpret the duo. They both seem as most sentient Psychic beings, to not require much sustenance. Maybe something about the moon's energy is all they need, something greater than animal's basic needs. If anything they can ingest rocks. Or something. Maybe they just absorb energy. I also would've used fiery aspects in Solrock somehow, but that's just my opinion as I've loved these two among my top Pokémon since I first found them. But I like your usage of them in foreign cultures, makes a lot of sense.