I'm so glad you did this video. I hope a lot of the plan vloggers watch it and incorporate your tips; particularly about cluttering. I watch a lot of plant vlogging videos and some of the them appear to create plant clutter by having too many plants in one space.
Great choice on the woodland theme! For a northern mountainous area, consider plants like ferns and rhododendrons. These thrive in shaded environments typical of woodlands and will add lush, green layers to your decor.