Well it depends on your wall color as well . since you have such concrete looking floor I would recommend you can chose any electic color like lemon , orange , yellow to give a bright look and uplift room mood or chose any pastle color of your choice for subtle feel . :)

The right way to layout the carpets in this room.

Sir please correct me if i'm wrong. Is it 50 feet high or its the width of the plot. And if its constructed then please send the structural details.

put wardrobe in L shape and mirror with small dressingg unit in opposite wall of wardrobe and plz do remove the gate and try to put sliding doors with translucent glass that make more space