I also like the provincial chair, although it's a more relaxed country style than the table, which I also love. This is really interesting and is a statement on it's own, obviously it needs chairs so I would suggest a relaxed but formal upholstered chair, something like a all back wihtout arms, with a nice fabric will accentuate the interesting geometry in the table frame. If you were to include chairs like the cross back, they would both fight each other visually as they have different styles and both are timber sections. Busy to look at. You mentioned balck or oak, both are gorgeous, oak can be found almost black as it's so popular. There aresome gorgeous chairs which have a curved side and are upholstered, so they feel like lounge chairs but tuck into a dining table. Coco republic have them, and the style is found replicated almost anywhere you look.

You can choose chairs either to match the curve of the table or the diagonal, chunkiness of the legs. Though that timber is going to be difficult to match. I'd go metal. You can contrast it with slim legs or go with the chunkiness .

Hi anzella, loving the new table and chairs, because you live in North QLD I wouldn't worry about a rug under the table, apart from you climate I find rugs under tables can become very annoying . If however you do decide to have one down the track, Sisal Rugs are great for your climate, you can even make your own to whatever size by buying the sisal and edging it yourself or getting a carpet place to overlock the edges. Some years ago I made two very large rugs and edged them with a wide black tape, I stitched them by hand, loved them in the dining and joining living room.What a shame you can't have the hanging lamp in the picture over your table, not sure if it would fit between your ceiling fans. cheers https://www.dealsdirect.com.au/product.aspx?saleID=1774c795-993e-4615-afbc-f53a2e1dcab3&productID=ojiuDsjunkG1Vz9n7zBrLQ&sc=7&c=12&mkwid=siJYklREw_dc&pcrid=189771976719&pkw=&pmt=&product=ojiuDsjunkG1Vz9n7zBrLQ_6xX6Gc4vLkKMpQtba7S3jw&gclid=CjwKEAjwoLfHBRD_jLW93remyAQSJABIygGp4cKCQmlURqkE4IbUxZFOwwVQKSQHTM9Fx7Xllv1FvRoCWqrw_wcB

It all depends on how much money you would like to spend. As your lounge is dark and your stools and bookcase are also dark I think white chairs would be fine, but then I would change the stools as well and take some white down to the lounge area. However you can buy stretchy covers for this style of chair for around $10 and there is quite a variety, so I would look on line for those to see if you like any of them as that would be a very easy fix.