What about this one? It's also chrome and opal glass from the same manufacturer.

Pendant light choice would usually be for a specific purpose so if you will move things around I would have a rethink. It may be possible to have a pendant with a long lead & hooks for the cord that would allow you to move it within a reasonable distance of the connection point. Maybe some general lighting might work better e.g. or two or three directional spotlights along edges or the ridge line & on dimmers if possible. Subtle strip lighting at the top of the grey wall & the addition of a feature decorative wall hanging & potted plants would look nice too.

I share you concerns with the look of the light. I lived in Cairns for a while and many restaurants etc had high ceilings with lights and fans with a more traditional look. Maybe you could do some internet stalking of hotel websites etc. I'd start with Palm Cove. Good luck.

The second look like they are designed for stairwells so I'd be a bit wary about using them up higher as the light might be a bit "spotlight" and not diffuse enough. I think both styles work with your house design