End-of-Month Update for January 2020: I finally got coloured resin, and I started making coloured miniatures.  The stuff is far less forgiving than white resin or castable wax, but when it doesn't malfunction, the results are superb.  I have a video showing off exactly what sort of problems I have with it, while the rest of the videos I uploaded this month show off the post-processing of sailing ship models.  You can see some of the other issue I've had with this stuff here: https://steemit.com/print3d/@steampunkkaja/lessons-from-a-miniature-t-10m
and here: https://steemit.com/print3d/@steampunkkaja/another-wtf-moment-with-coloured-resin
I'll find a way to get this under control eventually, but at least I have some better photographs in my shop now.  Likewise, if you're interested in getting into 3D printing yourself particularly of model ships, then I would suggest checking out my four-part video demonstrating the post-processing.