I can suggest any methods to photographing ice, but I like the second image of yours. A black background makes the ice stand out. May be a bit of side illumination, and a high f/ stop to get some star effect?
And in a few days, I'd be going back to my real life with cold, possibly icy weather, according to my coworkers. Burrrrr ....
Some from Ha Long Bay, Vietnam, I just visited.
The cool thing about pictures I can dream I'm on the beach in your first photo, because outside we are getting a coating of hard water. Anyone got tips for photographing ICE.