Did you pick a style yet? I like louvres but that may not be the look you are going for...

A suggestion. Since you have windows in the study with views, I would utilise those views. I would block up the small arch that is from lounge to study. Open up the large arch, and make a walkway. Put fridge in blocked up arch. Continue kitchen benchtop and cupboards around the entire study area on solid walls. On the window parts continue an open counter. You could have stools here to look at your views, and this could be used for working on a laptop with a wifi connection to a printer camouflaged in cupboards. Or just use it as a wonderful place to sit and directly take in your views. I would also reconfigure your lounge so you are facing the study area when seated. Photos attached for visual explanation.

When looking at window furnishings a lot of customers think only of aesthetics when in fact you should be looking at both aesthetics and energy saving furnishings. For Energy Savings the idea is to trap the air between the window pane and the furnishings. Make sure there is very minimal gap for the air to enter and escape. You still have a huge range of products that can provide both an Energy Saving function and at the same time look good. Remember up to 25% of heat loss and gain can be through windows. 4 Seasons Home Insulation can provide you with an Energy Saving Assessment as we cover most areas of NSW especially Sydney, Central Coast, Hunter Valley and surrounding environs (ask for Ross Kestle) These window furnishing s can often insulate a lot better than double glazing. Heat loss through windows without energy saving furnishings highlighted by this thermal image. Curtains with pelmets (including hidden pelmets, plantation shutters, honeycomb blinds just to name a few alternatives. Curtains to go to the floor and into the walls at the side, blinds fitting tightly within a window frame, possibly utilising tracks.

then i'm wondering what you will be able to see through the window...if it's only a view of neighbours walls then i would not have a window but if there's a view of treetops or sky then you need to also consider the frame around the window as well as the size of the glass so i would aim for a fixed single pane in the bigger size ie at least 350 for the glass