Hi, our wooden stairs was replaced with an old metal stairs from an office junk. Floating stairs too

As I know, you can lay a white carpet on the stairs in order to improve Feng Shui. Don't worry.

Thank you so much! Another thing, under the stairs are shoes cabinet and shelves.. is it okay? And our dining table is just step away from stairs landing..I put a mirror on the wall facing the stairs...what do you think sir? When you go up the stairs it immediately direct facing bedroom door.

It will be ok for you to put shoes cabinet and shelves under the stairs. Putting a mirror on the wall facing the stairs is a nice way to improve Feng Shui. In addition, if the stairs directly face the bedroom door, you can put a screen. Or hang a curtain on bedroom door. Hope helpful!