However, the concept of beings of perfect order that are just as alien as Far Realms creatures is a cool one. For the last 15 or so years, I have used some modron-like creatures that are crystalline in structure, but don't have arms, legs, heads, or discernable anatomy. .
I did something similar. Crystalline shapes/planes of force that floated around (no eyes, no legs etc.) crackling with energy.
The idea you have of "the more of them there are the smarter" could lead to interesting adaptations for mine...thanks.