I think you could get the telly put over the fireplace. Might need a mantle to deflect radiant heat, not sure. But on the cables and power, I imagine they can get that sorted. Im guessing there is a wall behind you when you took the photos. I agree that a low corner modular sofa would look great. Just don't get it so long that it is up against the fireplace wall. Placed into that corner of end and piano walls . Then pop your cute chair where the sofa is now. Large ( big enough for the sofa front legs sit on it, I'm guessing 2x3m or even 3x4m) patterned rug to define the area. Can you move the piano to another room or against the computer area wall? Can you make the small windowed room the homework hub? Imagine a long bench against the window ( Ikea do a good cheap range that you make to fit your space). Ensuring the computers are in line of sight from the kitchen(?). Pull out the table to give it more space around it. Or flip it to run the other direction. Hard to tell from the pics the dimensions. Paint a lighter shade as mentioned before. A sketch of your floorplan would be really helpful :)

Very nice. For most places in Australia, lighter colours and verandas are more practical in our climate, but that is fine for theirs.

Honest , I don't set out to stir haha ! The bedroom is on the right track -- love the painting ! So why go with Mushroom throw rug , mushroom cushions , mushroom striped duvet , mushroom pillow slips , mushroom towel . . . . . . . . . And I'm slowly getting the idea of decorating . Tidy the place and turn the lights on , and everyone will say how bright and breezy it looks . . . . . . . . . .

This is so lovely. The photos are amazing. Am not a fan of spiral staircases but sometimes it is all that space will allow.