I adore Vija Celmin’s comet picutres so I did one of my very own. I used some old astro-photos from the 1900’s as a starting point. All done with a 0.5mm drawing pen.
And here is a fantastic example of when things go wrong. It’s too easy for me to turn things in to patterns as this poor picture shows, it was going quite well up untill the point where I tackled the gas giant. I’m sure with the universe being the strange and wonderful place that it is that some where out there there is a gas giant that looks like a giant, spherical florentine cushion and that this is a good visual approximation of it.