Hi Simon,
If you looked at that you'd conclude that space was really crowded. I don't know why but it must be to do with the way you process these images, all very subtle and not 'in your face'. That was a lead in to something I perhaps should keep to myself, but there is a head of an alien bird-like creature in the middle of the Crescent. It's so much easier to make out in your image Simon. The eye with the iris highlighted is a bit to the left of the almost central star. The beak like jaw is on the left and the back of the head to the right of the nebula is elongated ending with a few slightly-red,feathers maybe. Please tell me you can make it out, even just to humour me.
A short neck and a bit of the torso are also there.
What is wrong with me?
I also saw 'The Thing' (apparenty a Marvel comic book character), and made a reference to it when commenting on your wide image of Rho Ophiuci some time back, where he is shown standing. Okay, bear in mind that Antares is making him look a bit orange, and space is quite dark hence the headtorch on the forehead which doesn't quite match with his/its picture.
I'm thinking there ought to be a collection of your images, including the Downing Duck. Simon's Collection Of Unique Space Ephemera. Remember in terms of the age of the universe these are fleeting images . Give or take a few hundred millennia they won't offer the same view, so yes ephemera.
Apologies for more rambling.
Best wishes, Ray