Go back to the completely dark, Gothic and desolate tone both visually and audibly of Diablo 1 and 2, leave the super colorful cartoonish stuff to WoW. I liked the dread and darkness of Diablo 1 and Diablo 2. Bring back the maturity of the game. Show rooms with eviscerated corpses. Show nudity. Show how terrifying the evils are instead of them yapping at you all day and sounding like whiny b*tches. Show don’t tell.
Get rid of that WoW dwarf character you are trying to call a druid (are you serious?). If you want diversity bring back the witch-doctor and make the Barbarian blonde haired again.
Why does Lilith look like a starving Maleficent character? Isn’t she the mother of succubi? Put some curves on her and make her sexy like all the previous artwork depicts.
TL:DR = Stop copying WoW and copy Path of Exile, Divinity Original Sin, Grim Dawn, or Titan Quest instead…