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

I'd suggest framing it out and using it as a window seat. A carpenter could get that done in half a day. Anchor the frame to the wall, get a custom cushion made and fill it with some cushions and you have a beautiful space to read. Bonus is the minimal cost.

The perfect style of windows can lift a space from ordinary, to extraordinary. So how to you choose the right style to create a stylish, functional and relaxed home, especially if you’re new to the process. Thinking outside the box with a fresh design idea, means you’ll enjoy your home in all four seasons, for many years to come. Why not check out our Selection Guideline to help you make the decisions a little easier. Option 1: Modern Option 2: Traditional Option 3: Colonial

Is that a photoshopped pic of your place , or just a similar place ? There are too many styles trying to happen there IMO , not only the windows , and like oklouise says , somethings don't quite look right . I'd do bars ( frames ) about 200mm from the top of the two upstairs sets of windows , to match the downstairs style . Unlike ok lou , I don't like louvres -- they are drafty and don't really achieve much IMO -- a kid can put their hand and/or toys and/or your valuables out there , my personal preference is top-hinged with a folding stay at the sides , so they open 150-200mm but no further -- no-one can climb or fall in or out , can stay open overnight if warm , etc . I don't particularly like the upstairs balcony and gable , but I'm not keen on the entrance door treatment either , and without knowing what it looks like now , I may be tempted to replicate the 'double square' look of upstairs , downstairs too -- make it all the same theme . I'd keep the garage in the off-white , because if you look at the right side , both downstairs and upstairs look a bit boring IMO , with that flat dark finish -- the garage door done the same would add to the slab look . And while I'm being picky -- I personally think the black or extremely dark grey is too dark -- toned back just a bit would be better IMO -- you don't want it to look obviously grey , but a nice charcoal IMO . And finally -- the column bases look 'dirty' -- imagine how they would look in a gloss black tile on the top and also the 'skirtings' ( or a gloss black paint at a pinch ) ; with white gloss tiles where you have a light grey ( or , again , maybe the same paint as your other trim , but $5k of tiling would really add to those ) -- I think that would work with your black , or even a charcoal , 'main' colour . Anyway , just suggestions , and purely my viewpoint -- it's quite a nice but still simple design , just a couple of small things that would bug me if it was my place .