Industrial interior design is known for its open layouts, high ceilings, visible ducts and pipes, and exposed brick walls. Since you obviously don't have brick walls ... try painting the walls a soft concrete gray. Concrete is a commonly used industrial floor and ceiling material.

For colors, the perfect palette for an industrial interior is a mix of many natural colors, neutral browns and tans, white and black.

Rustic wood and exposed metal are a key combination of industrial furniture design. So switch out the desk with something with a steel frame and a rustic wood top. https://www.wayfair.com/furniture/pdp/ballucci-hadfield-reversible-desk-w002622037.html?cjevent=9bdcd77fa0ef11ec83cd01070a82b82c&refID=CJ687298-CJ2975314&PID=CJ4441350

Pair it with a distressed leather chair. Try thrift stores or an antique mall.

If you can, replace ceiling fan with something more industrial. When it comes to industrial lighting, the edison light bulb is king! Caged Ceiling Fan with Lights Remote Control,Low Profile Flush Mount Ceiling Fan Light,Industrial Enclosed Bladeless Ceiling Fan (20in Black) https://www.amazon.com/dp/B09N3KGHTN/ref=cm_sw_r_apan_glt_i_F7TEB1M3S4E75XSMWYQK?_encoding=UTF8&psc=1 Honeywell Ceiling Fans 50614-01 Carnegie Ceiling Fan, 52", Matte Black https://www.amazon.com/dp/B07GJQ7N7V/ref=cm_sw_r_apan_glt_i_EARPQF2J74MNJASRB6CT?_encoding=UTF8&psc=1

Hang some Large Abstract Wall Art or some Machinery Inspired Wall Decoration

Corral clutter in wire baskets

Spectrum Diversified 47876 Wire Storage Basket, Small, Industrial Gray https://www.amazon.com/dp/B00EDN72D8/ref=cm_sw_r_apan_glt_i_049BB546H30AVNWG2J0W

Since your space doesn’t include exposed ducts or pipes, make the most of pipe furniture. Industrial Bookshelf, Bookcases and Book Shelves 5 Shelf,Pipe Bookshelf, Industrial Pipe Shelving, Pipe Shelves(Rustic Brown, 29.5" L x 11.8" W x 70" H) https://www.amazon.com/dp/B093LBQT41/ref=cm_sw_r_apan_glt_i_4Y08E201XZXPPX8VM0J2?_encoding=UTF8&psc=1

A Natural sisal, rugged cowhide, or a vintage Persian-style rug creates the perfect complement to your industrial bedroom.

For bedding, try Linen-inspired shades for sheets and quilts stand out against the palette of brick, navy blue, and gunmetal grey. https://www.overstock.com/Home-Garden/VECELO-Metal-Bed-with-4-Size-Options/32883428/product.html?refccid=R5L5WQPHM7YZW5SC6CC3PZIVNQ&searchidx=4 https://www.overstock.com/Home-Garden/VECELO-Set-of-2-Nightstand-2-Layer-1-Drawer-Bedside-End-Table-Brown/29627039/product.html?refccid=R5L5WQPHM7YZW5SC6CC3PZIVNQ&searchidx=5