These are very nice (especially the Betelgeuse set), but -- unless this is just chance from the ones displayed -- don't they mostly all have the same silhouette, a rounded rectangle? While the Betelgeuse ones have more flair and are more differentiable from each other, an excellent thing, locking them in a box is the same kind of jail that this article is about.

I would love to encourage you to free your own icons from the round-rect jail. You have some fantastic designs there.