Thank u all so much, though I must clear the confusion on the pic I posted... The actual space as of now has -'no cladding or wood planks' what so ever, it does have the same rectangular shape, the same ceiling pop, with the same electrical points for TV, and a balocny at the opposite end. Which is why, I was seeking your feedbacks. :)

I have some suggestions if you are thinking budget friendly changes. Make a photo gallery with different size frames and arrange them parallel to the stairs, so you can enjoy each photo as you climb up. And for the area that will be on a level with your upper floor, try some pretty decal that will connect the photo gallery to upper level. And last, if you have budget add some beautiful hanging lights in the stairwell. Also think about repositioning your refrigerator.

thanks wing feather impressions and also want to know what colour of tiles should be prefer

Wouldn't ceramic tiles wood finish, laid in planks of 6" x 24" solve the problem? Not my go-to choice though. Another option would be to use texture paint (with larger granules) in a deep chocolate colour