Here's the first resin test. I coated it multiple times to build up the ice. It maintains the detail fine, but I don't like the idea of them all in a thin amount of ice. It implies they stood still for 20 years while water dripped and froze on them slowly. I want this to look more like an instant frozen forever in ice.
This is the thickness of ice that I want. I only sanded a few small areas enough to confirm that you can still see all the detail inside. If you go at this with 80 grain sandpaper and work your way down to 600 grain, I'm relatively confident the detail will show through.