HI Kath, Yes the larger lounge needs to be moved in front of the blind and .8M out from it. (you need .8-1.5 meters walkway space between any objects and any less looks cluttered) The 2 seater, needs to be moved 90 degrees to touch, almost, the 3 seater and facing the fireplace. Position or purchase a new square coffee table to fill the void this will create and a matching one in the large space facing the TV. Move the TV Cabinet, which absolutely is too large for the niche, to the large wall. Decorating is about matching shapes and proportions. Pop it all above a rug that sits under the entire lounge suite. You also need two artworks of the same size for either side of the fireplace. As a customised artwork specialist, I would suggest, contemporary styled collages in a your natural palette with accents of red and a green accent. Collages would add much needed texture to your space. Large frames are also required in a metal to match your fireplace. Keeping the colour palette simple, like I've done here, is the key.

take this photo to second hand furniture/kitchen stores and contact P&O

Lounge Lovers, Ikea and Temple and Webster all have cane interior lounges. Not sure if they’d have the style you’re after. At the higher end of the market Uniqwa Collections have a comfortable looking three seater. Also Byron Bay Hanging Chairs have similar day beds to your pic, and also sofas. You can always have custom cushions made to bulk up the comfort factor.

Those seem to be trademark varieties from outside Australia. You could contact Daly’s fruit or Diggers Club to see what dwarf varieties there are available in your area.