The entrance to the bedroom door is feng shui offensive. Hanging bamboo curtains on the door is correct, but it will not affect the air convection. Because bamboo curtains generally have a gap of about 3 cm, air can circulate through this gap.
If you want more air convection, you can take a semi-curtain, which is 1.2 meters long, and there is a completely empty section below. This can also play the role of porch and resolution, which is equally effective.