Here’s some of the line art for Skazka’s birch forest backgrounds to test style and tiling. The forest’s make-up is primarily birch and aspen with some alder and larch. As the game moves into “deep forest” (i.e. the taiga), coniferous trees begin to dominate.
Fun fact: the taiga is the world’s largest land biome, spanning both the Eurasian and North American continents.