Reddit reviews ZOBER Premium Wooden Coat Rack Free Standing, with 6 Hooks Lacquered Pine Wood Tree Coat Rack Stand for Coats, Hats, Scarves, Clothes, and Handbags -

In addition to what u/bubblymimosa said:

• As to the plants, Snake Plant and Pothos do very well as beginner plants indoors with low light. Get some organic soil like FoxFarm that has plenty of airy-ness to it. You've got lots of space on top by the windows for other plants that need more light like Croton or String of Pearls.
  
• Add a standing coat rack like this one between the edge of the door when it's fully open and that first filing cabinet instead of the small hooks?
  
• Get some thin pillow inserts and get some pillow cases with personality (that fits you, of course) to place on the backs of the chairs. Ikea has a good selection at good prices.
  
• See if you'd be allowed to put up removable wallpaper. It's generally peel and stick and you'd just peel it again to get it off. Nothing terrible like wallpaper horror stories. Like at Spoonflower (the woven kind), or at Chasing Paper.
  
  I'd pick a color scheme you like or a statement piece you adore and use the colors off of that in the rest of your decorating.