I wouldn't automatically classify Izzy as a girlish nn. It sounds more like a 1930's Jewish-gangster-in-a-pulp-fiction-or-movie type setting. I seem to have run across a fair number of them when I went through a stage of reading old pulpy crime novels. Either a villain or a "shamus" as they were called.
We don't need to set the sky on fire. A little glow will do just fine.
Bob Ross