I just finished this dungeon door and I am proud of it, but it feels very blank. I think it would be good for a low poly game, but I am trying to add some realism to it. What could I change?

I just finished this dungeon door and I am proud of it, but it feels very blank. I think it would be good for a low poly game, but I am trying to add some realism to it. What could I change?
