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.

First Floor additions; Leichhardt house, Sydney Australia. Skillion clerestorey roof with raking ceiling & highlight windows. LIGHT; Lots of light! Ibrahim Conlon. Architect

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