Elvui used across all of my current characters, made by me with inspiration taken from other UIs i've come across over the past 2-3 years (Reloe and Fragnance's UIs are the main ones).
Weak auras might be posted later once i have time or if someone asks, I have Weakauras for Balance druid, Shadow Priest, Mage, Rogue (Not sure if all specs, haven't played since BoD), DH, WW Monk and Unholy DK.
All Weak auras were made by me (Other than any power bars like my astral power bar and insanity bar) again with inspiration from other setups i've seen of the past 2-3 years (Mainly Fragnance).
Edit: Balance druid WAs uploaded https://wago.io/EwRGX9Enf
Screenshots show default solo frames, Party frames, Raid frames and Boss frames. Action bars 1, 4 and 5 are all mouse over which and should be shown in the anchors screenshot.
Party frames show defensive CDs because i play a Balance druid in M+ and it helps with timing my treants, can be removed easily in the party buffs options.
I also use Details for my damage meters (Bottom right of all screenshots) and Gnosis for my cast bars but elvui cast bars are already set up if you'd prefer to use those over another addon.