All a work in progress. My iPhone 12 is standard, not Pro, thus has no dedicated telephoto lens so without using the digital zoom things afar are small and grainy if stretched in a screenshot. . As I'm trial & error I only, this morning I watched some YouTube on the subject of optical vs digital zoom & how to use for this type of picture. Unfortunately the much needed forecast of showers may cancel any chance of my trying more moonshots tonight but next clear evening or night I'll try again. Remember I'm a user not an enthusiast so guessing is frequent in this sphere.
But thanks jasassy for your nice comment. That gives me encouragement to keep trying!!
The best time to take iPhone photos of the Moon are just before sunrise and late evening before the sky gets too dark. The iPhone camera can’t handle the contrast ratio between the bright Moon and black sky.