That's wonderful Steve, and funnily enough I've just been going on this exact group for the last 5 clear nights!

It's a great image and doesn't look noisy at all to me, great work!
It was quite windy here during the time I collected data on this, which is unusual. So I'll probably have difficulties matching your details there as I think many of my frames had some trailing as result. At least you've given us a top shelf Hickson 90 image now, and I'll certainly look to it for reference