There are 2-3 variants about how to create this room. By applying all furniture elements that you desire this is (for me) the best solution.
I try to make use of every single cm2 of the bedroom to optimize the space so i recommend consider to ask a carpenter for some piece of furniture becouse
they are all by measurements to fit in the right spot. I send you link from web site where you can buy all furniture that i put in this project that are
with similar dimensions and are very cheep (i really try to find quality, elegant and cheep furniture).
Wardrobe is with sliding doors with 1 door with mirror.
Desk is optimal for study 140x60cm + extra 90cm length (that how you can use that corner with column and that space also can be
use to put TV or computer for watching while relaxing on bed).
Library is right by the wardrobe and the armchair where can be sit and read like relaxing area.
Shelfs for books and stuff are under desk with open shelfs and doors
Bed is standard 90x200cm with drawers ( the point is to use space for drawers as much as i can so there can be room for cloths)
Bedside table with drawers practical for bedside lamp/light and stuff/decorations
I notice that Giulia use notes on the wall so i put a Notes-board on the wall (its practical and decorative)
Lights - i use LED linear light above the desk (its good source of light for reading) a lamp beside the bed.
Flooring as can be seen i change it to more light variant with oak boards (light smoked) that will change the ambient of all room (because its dark)
and will match the oak furniture who are btw all with oak timber light and white media pan.