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.

Pendants seem like a better geometric fit.

Hi Rishab, You can avoid creating 4" false ceiling and create 1.5 / 2" false ceilings just to let the wires hide and run within the false ceiling. I will not recommend conduits or exposee ceiling unless you wish to do a rustic interior design. You can go for Surface mounted lights and track lights. They are beautiful and are available in different shapes and sizes too.

Suraj, If you have access to the room that you shared earlier you can try seeing the flicker effect at night time with both lights and fan being on. If the lamp has a 360 degree light spread it will cast the fans shadow on the ceiling and when the fan is turned on it causes a flikr effect. I personally find it a distraction and at the same time many would not even notice it. Take the pick based on your usage. Wall mounted fans and recessed fans can also be explored. Thanks, Nitin Cornerstone Designs, Bangalore.