I doubt you're going to find that EXACT bench ... the website says they are custom made to order in Australia. For something 'similar', I would google image search 'tufted modern ottoman chrome"

I would put it on the wall behind the dining table, turned the other way to how you have it in the other photos. Take the small pics away from that spot and away from the wall near the christmas tree corner and group them all together on the wall between the 2 windows. find a large piece or 2 of art for the wall near the christmas tree. Thats what first comes to my mind to do. Its not to busy at all, Brandi is correct, the pictures are too small to be so far apart on a large wall.

Thank you so much everyone for all the fantastic ideas. I'm glad I posted here. Your pictures all look amazing too. I never considered a mirrored cabinet at first - I didn't think they looked as sophisticated! But the drawers just don't provide enough storage and I think I will go with that - it will satisfy my desire for a large mirror too! I love the "round the corner" idea for getting a good view of my hair dos! Thanks again everyone :-)

Before replacing your curtains as this can be quite expensive for such a large window, if they are in good condition, add a band of extra fabric to the bottom in what ever suits you, your existing curtain track can then be moved up to the ceiling for good looking full length curtains without the large round eyelets, could save you a lot of money, I would look at replacing/removing the sheers cheers