Gorgeous bloom
You can get a magnifying lens to see if there are spider mites crawling on the leaves or wipe the underside with white paper towel to see if there are insects (black specks against white). Mine were infested by spider mites when I had them indoor but I kept spraying the leaves (including underside) with water every time it's watering schedule and they all gave up.
Now, I'm busy cutting leaves off with yellow rust. While it is not harmful to the plumerias, I don't like the look of yellow rust at all.
