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I would also like to see different hero models, male and female. For example, with the Dark Elves, it's unclear whether the hero is male or female, but with the Mages, Ora with her clearly male model looks strange.
Yes, that's true. They could have done the same with the units.
Added 2 minutes later
For example, the basic unit could be any, the first upgrade could be male, and the third upgrade could be female. Then it would be better and more interesting to play.