We converted a 12' x 15' bedroom into a two person office + den. I'm posting our final layout to give you one possibility. I recommend really focusing on the use of the space. We needed a long counter for crafts, a lot of book storage and a comfortable place to watch tv. DH sits in his comfy desk chair and I use the chaise when we watch tv. Lisa

In our current home it’s SW0055 light French gray. In our new home it’s more greige like mindful gray Im not 200% sure as we haven’t moved in yet

Desk- https://www.homethreads.com/products/furniture/writing-desks/380510-bernhardt-decorage-desk?nbt=nb:adwords:x:20848449797::&nb_adtype=pla&nb_kwd=&nb_ti=&nb_mi=122818847&nb_pc=online&nb_pi=HT106173&nb_ppi=&nb_placement=&nb_li_ms=&nb_lp_ms=&nb_fii=&nb_ap=&nb_mt=&gad_source=1&gclid=Cj0KCQiAv8SsBhC7ARIsALIkVT2HWofPEemcAO2HYSGp7GxeIYHH3wVPH7_YCcFi0jXEshM-Cm8I4VMaAtvxEALw_wcB Chair-https://rh.com/us/en/catalog/product/product.jsp?productId=prod16260018&layout=horizontal Curtains- https://rh.com/us/en/catalog/product/product.jsp?productId=prod15980099&layout=square Wall Art- https://www.etsy.com/listing/563931419/1816-map-of-europe-vintage-map-of-europe Paint- https://www.littlegreene.us/obsidian-green I made a 3D rendering of a design that will look amazing in your room. I would paint the room a dark shade of green to set the moody tone. Add a camel leather chair, and a beautiful marble and wood desk. The marble will make the space look less masculine. Add some black and white wall art of your choice but I thought maps would look nice. For the curtains just go with some simple beige ones. This design will all look gorgeous with your existing rug. Keep it simple and cozy since the room is not that large Here is an inpiration pic that I based the design for this room on!

I think it’s an amazing opportunity for a fun wallpaper. Here’s some inspiration