Seriously now?
I really hope better than my drawing "skills" suggest:

So, build up the "pillars" between the windows to the terrace railing height (so probably about 90 cm), build above the windows themselves to about half a meter below the "parapet edge" and fill these spaces with glass railings; continue the "rest" of the terrace – where there is no building structure underneath – for example with "railings" with glass railings.
Mind you: with the roof I proposed – I spared myself erasing the hipped roof, and you can hopefully imagine rafters like at the topping-out ceremony with solar modules on top without my Picasso skills