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It is :) It was that seemingly flying rock in the mid background that reminded me of an asteroid. This prompted me to increase the cosmic appearance a bit.

Now I see the background! I had to view it full size, but sure enough I can see the milky way in the background and stars in the foreground. Talking of flying rocks, have you seen the recent images of asteroid Ryugu? - https://www.space.com/41957-japan-amazing-asteroid-photos-hayabusa2-rovers.html . Definitely check that out if you haven't seen it yet.

Thanks for the link - absolutely fascinating! Thinking of the difficulty of landing a high-speed vehicle on a high-speed asteroid is simply overwhelming.