Titles on django admin

[pablodiegoss]

Feature Request

Is your feature request related to a problem? Please describe.
We use django admin to manage objects from the DB, however, some models aren't using their titles to describe each item.

Describe the solution you'd like
Instead of showing "Profile Object (1)" we could use the username of the user related to the profile to list each profile.
i.e: "pablodiegoss", "root".
Artworks have the same problem, they could use the artwork title.

Additional context
Objects, Markers and Exhibits already have this feature.