For the den- Small Living Room Ideas: 10 Ways to Furnish & Lay Out 100 Square Feet - move everything turn to accomodate the door.
basement: Living-Room-and-Kitchen - like the colors and lighting. doesn't seem dark even tho only 1 small window
27 Decorating Tips We Learned From “Fixer Upper” Star Joanna Gaines’ Beautiful…
Check out the tutorial: Industrial Pipe Shelves (Diy Storage Bedroom)
Over The Toilet Storage Ideas for Extra Space - Hative