New vanity set aura effect

I have boomslamg and deathstalker set. And when i use it, it have a aura.

But the problem is, that aura effect (from set vanity) is a bit different with the effect from a real aura (literally aura). There is no snake or scorpion that i can see. Not like the real aura that snake or scorpion always wander around.

* Black widow vanity set have a same problem (no spider wandering around)

I don't know this is a bug or not. But if this is just a bug. Please fix it.

Sorry for my bad english. Thanks

This is not a bug. The set auras do not have critters. The deluxe Plat auras do.