I'd consider putting the corner sofa and TV stand in the dining room, moving the stand-alone chair and footstool and tall lamp near the stove as a "reading nook" and placing the dining table in the living room, leaving enough for a walkway from the entry to the current dining / possible living room. In terms of the actual furniture, everything other than the colour of the dining chair fabric looks pretty good. I would start by decluttering and removing anything that isn't functional or which you don't find aesthetically pleasing. I'd personally remove the mirror in the bar as I don't think it gels very well, the tiny framed art near the stove, the art on the wall near the TV as it's too small and hung too closely and the drum kit (unless the drum kit is used on a daily basis). I really like the Marimekko print and, IF you like it, then I would use it as inspiration for adding colour to each of the rooms, possibly even a "feature" wall using the bright blue from the print (although I'm not a huge fan of feature walls). A few minor changes may also help, like replacing the blown bulb in the wall sconce, storing the ironing board somewhere else and taking down the "hanging" glasses in the bar area as they're visual clutter right at eye line height.

I have used Saatchi Art (saatchiart.com) to both browse and purchase art for our home. Original art work can be purchased and most artists have prints at a more affordable price. It's a good place to determine what styles and mediums you love as you can filter your search. For Australian art I love Blue Thumb (bluethumb.com.au). All Aussie and all original. Very few options for cost effective prints unfortunately. I'd be cautious about filling the space for an instant look. As everyone before me has said "art is personal" and as such, I think it should grow with you and your space. Start with one piece that you really love, big or small and work around that. I have found that putting unusual unexpected items on the wall makes for interesting 'art'. My husband's baby shoes (circa 1953) and now our children's first shoes are objects that always create conversation when guests come over. I have a Mexican art cross (we're not religious, the colours and the metal work drew me to it), a vintage wooden Indian spindle, African birds in a tree hand-beaten and cut from a steel drum, a clay mask my daughter made in art class, a woven Maori kit bag, some art that our kids have done at school (put into Ikea frames so they are always the right size. We change them as something else we love comes home), a hand-made ceramic tile, a growing collection of geckos found in antique stores, vintage travel posters in frames, (I'll stop listing what we have!)...all these items and more, have been collected over the last 20 years and put up around our collection of art or in clusters to create stories. I've collected the initials of our family (yes the child with the "K" is not thrilled it's so small and the child with the "G" feels he's by far the favourite! Needless to say both will be replaced in the future when a more appropriate size comes to light) from vintage stores both here and overseas. Our walls are a growing collection of art and objects and at any time I can move things around and change the composition as a new item is discovered. Best advice I can give you is to have fun with it, enjoy creating your own gallery, it's for you to love you're not required to impress anyone else.

Hi Polly - we have a number of gorgeous triptychs that may be just what you're looking for! Azure Bay, K'Gari (Fraser Island) and The Daintree would look stunning! To suit your 300 cm long sofa, I would recommend art that is approximately 75-85% of that total 300cm width you're working with. Each triptych in our collection features 3 pieces of art that were designed to be together! In your specific case, I would recommend our 30x50 inch size. Each of the 3 artworks measures 30 inches (76.2cm's wide) by 50 inches (127cm's tall) - therefore, the 3 pieces in total would measure 228.6 cm's wide. In addition, allowing for some negative space in between each artwork, you will find that these stunning pieces would fit your space beautifully, bringing balance, beauty and gorgeous colour into your world. We are happy to offer a 'virtual proof' of this artwork in your space so you can see how it will look on your wall prior to order - simply send us an email with a photo of your lounge with the wall behind and we will work our magic for you :). Our triptych's are available as classic canvases, professionally framed fine art prints and boxed framed canvases, all delivered within Australia. We're also proud to offer 10% off all purchases over $150.00 to all Houzzers ... simply enter code HOUZZ at checkout. Please don't hesitate to contact me via the website www.thewildheartcollective.com or via email nik@thewildheartcollective.com if you require further assistance - we would love to be a part of your wild heart :). Here is our Triptych - Azure Bay :) https://thewildheartcollective.com/collections/triptych-family-art-collection-set-of-3-matching-artworks/products/azure-bay-triptych-3-artworks?variant=18436007854169

I agree with changing the doors from the garage (if not problematic for fire rating), the powder room and the pantry into sliding doors - either cavity or wall mounted for a feature. Also I would definitely have the sink in a bench along the outside wall - and I would have a much bigger window there to let more light into the kitchen. Also swap the opening of the sliding door to the other side and change the door to closer to the kitchen wall so the fridge and bench in the pantry are on the wall furtherest from the kitchen which will give you a longer bench. I would also try to have the doors to the garage and pantry as close as possible to opposite each other for ease of carrying groceries in. Good luck with your build - I hopes it turns out to be everything you are hoping for. <3 :)