I love it, and are considering this myself which is why I can offer an insight to installation. Yours is luckily freestanding, however I would install this central to the long part of your L and enclose it within cabinetry, actually yours is Likely to just be faced with fake doors and no carcass behind, still a place to utilize storing buckets or baskets, even laundry powder, just not a standard cupboard. I would then actually install a stone benchtop making this technically undermount trough. You would still have the practical size and aesthetic impact this concrete relic has to contribute. Only, with the bench top area to make it a useable space.

After much consideration of your photo, I really think you have it right! The gold mirror matches the gold towel rail ! All your other elements, i.e. the plant and stand, match perfectly with and enhance the room's overall look. I think the suggestion of painting the wall behind the mirror, is an excellent one, in a shade of green which would tie in with the tiles on the floor and the plant. You have the ceiling height to handle it. I wouldn't be shy with a dark emerald green to complement the tiles, I think the gold would then really shine and blend with the gold hand rail. Photocopy the pic of the room and using a texta, colour in the wall and see what you think before committing. Be brave. Congrats on a beautiful room! Good luck.... i do hope you'll show us the end result whatever you choose to do.

I love all this feed back - thank you ladies & gents :) I do think the light and flow would probably work better like oklouise's first post - I concede you are both right. My concern was the depth of the shower - we have a very pokey one at the moment but think I see how to rectify that - tell me what you think? Also I want LOTS of storage and think keeping the storage in the activity with the entrance now up the other end would limit the furniture layouts so I would probably keep that in the entrance hall and still use the nook as is - no doubt they will sit there to do their makeup as the light will be amazing BUT i can imagine the mess will not - haha! I LOVE those doors siriuskey- so grand and impressive but my husband is a lay in bed TV watcher so that would possibly take up too much wall space for his liking - again I giggle ( you have to right?)

looks wrong as it is currently - IMO it would look way better centred in height between ceiling and vanity and also possibly better centred to the basin, since it's offset to the vanity - a mirror centred to the vanity but offset to the basin could look odd - but it's hard to judge accurately from those photos as it's hard to gauge the scale of all the various elements.............like with everything to do with design it's always about balance