No obvious changes in the Austrian rehearsal. Nathan Trent is wearing the same suit and still looks very approachable, relaxed and enjoying himself. Visually it looks great but there are some things that could be a bit better. The moon on stage still feels a bit random as the rest of the visuals mostly show the beginning and end of a day. Then the glassbox he steps on during the final seconds is clearly meant to show him 'running on air' but that doesn't become very clear. There should certainly be some trick to make the box invisible so he actually does seem to be walking on air.
This might all be me nitpicking a bit. Another issue on the 2nd run though is with the vocals, he needs to be careful with them as big offkey notes might be remembered a bit too much by televoters and juries.