An absolutely magnificent image, Andy. I keep staring at it, mesmerised. My first ever-so-humble foray with the ZWO ASI on Sept 18 with just 20 x 10s of the Lagoon is of course, miserably lacking in detail (see Beginners' Photography forum), but this image of yours shows me what is possible, maybe in a few years' time!
Hope you enter this image in a comp or two!
Cheers,
Richard