If you love that wallpaper, use it in bathroom. Not really right for behind bed. I would go a drum style chandelier. In a silk pale gold. Your bed looks zen or Asian to me. I love it. But, you don't. Need to much with it. Keep it simple a more formal drape on windows, color would depend on wall color and bedding. I'm thinking a dramatic peacock satin. Use a lighter same tone on walls a rich teal. Ceiling can be gold leaf. With alight that cast shadows on ceiling at night. Then your wall paper will tie in. Furn should be mirrored.

I'd open it above like a 'pass-through' and bring the table out in front of it with a bench under the opening.

Hi Simran, I totally agree with you. The string lights are beautiful but do not last long. You can use lanterns instead, they look equally stunning. Try getting some in geometric shapes or paper lanterns. If you're still hooked up to the typical string lights, you may go ahead with battery powered LED string lights. A little pricey but worth every penny! Hope you enjoy lighting up the place :)Geometric Pendants Battery operated LED's Good Ol' Paper Lanterns

Pendants seem like a better geometric fit.