Prompt: landscape painting of an old-growth birch forest beside a calm lake, in the style of Ivan Shishkin, Makarov, Levitan, subtle autumn colors, soft dappled sunlight through the trees, calm reflective water, fine detail on tree bark and foliage, sharp focus on closest birches, selective soft blur elsewhere, conveying a meditative atmosphere, moody yet peaceful, as one gazes at nature's eternal cycle of growth and decay, highly detailed smooth brushwork, digital painting, 8k resolution, artstation