How do I make a moody green room with big windows feel cozy?

Make a moody green room with big windows feel cozy by layering window treatments such as sheer curtains with textured drapes to soften harsh light while maintaining warmth. Add natural elements like warm wood furniture, plants, and woven textiles to contrast dark walls. Incorporate ample lighting layers to adjust mood throughout the day. A large rug and balanced seating anchor the space, creating an intimate atmosphere despite large windows.