it's ok Oskuee, I still haven't really finished the lounge, really? this is a great website, I can refer back to comments and advice for future reference as well. I definitely want to find a nice light/s for over the table, I just don't know what will look good, I have been scouring houzz and a few other sites trying to find something that might suit and perhaps improvise with as well with a similar/replica? I still have a couple of pieces by the dining table I want to sell or swap? as I had my eye on a beautiful 2mtr long 1mtr high buffet, but for $3000+ (perfect dimensions and look) Which hides all the dishes and glasses and a built in hidden wine rack : ) I couldn't justify spending that much so have an empty space waiting for something to come along? I have even considered trying to build my own? but don't want it to look banged up either? hehehe

Don't waste your money rendering the bricks - that look will go out of fashion. Don't replace your tiles with a colourbond roof either as that would be giving you an inferior roof and colourbond roofs are noisy. Replace your front door and try and choose wrought iron bannister railing. Then start off fresh with your front garden; soften it with magnolia shrubs, white agapanthus and trailing plants such as erigon to trail over brickwork in the driveway. Your bricks show a lot of character; please don't render them.

The vertical blinds MUST go. Sorry, but they are hideous and add nothing. Get some fabulous mid century fabric pattern in some gorgeous colours and make curtains. You can make a couple of scatter cushions also out of this fabric. Then pick out your favourite colour from the fabric to add some plain cushions. If you have gone with the patterned rug option such as asquithoatley has suggested, then just pick out the gentler colour for plain curtains to compliment the rug. Either way then choose cushions using any, or all of these colours. Then you should look for some decorative items in these colours such as beautiful bottles that might pick up an aqua, or some lamps with bases that colour to put on a side board. For the wall I suggest that you look on ebay in mid century modern and see if any wall sculptures attract you. There was quite a fad for enamelled metal wall sculptures back in the 60s which would add some life. Try to find one that also incorporates one of the pattern colours. Susan_66 made a great suggestion with a Howard Arkley print of a mid century house. You might even find one that is similar to your house style which would be fun. Happy hunting. You have some good pieces and they will work well with a bit of fun fabric or rug to link them.

You never mentioned your budget that you're willing to spend. You could add a thicker fill backed insulation blanket - 50mm, 75mm or 100mm are the common thicknesses. Steep roof pitch so would need scaffolding, harnesses, etc.. which adds up quickly. Probably still not enough insulation though but probably cheapest option. Insulation under existing timber linings then reline over the top of that as some have suggested. Working at height though so would need scaffold set up again and working overhead is not fun nor easy. You could replace the roof with a sandwich panel roof. Try Versiclad or Kingspan or comparable. They have a polystyrene type of insulation between an outer metal roof sheet and a metal inner sheet. These are heat laminated together. Again different thickness available from 50mm up to 180mm is common. The 180mm has a R rating of 4.7 which is quite good. Again steep pitch, etc., probably need new ridge capping, etc.. Probably most expensive option...... Keep us all posted on your decision though!