Hiking Photo to Marker Sketch

Using the provided hiking photo as the reference, transform it into a loose hand-drawn marker-and-ink travel sketch. Keep the same composition, the 2 hikers, their poses, outfits, backpacks, and the mountain meadow setting, but simplify the scene into rough black outlines with flat scribbled color fills on a mostly white background. Preserve the large boulder on the left, the grassy slope, the tree line, and the snowy mountain peaks, while making everything look like a quick expressive illustrated postcard or outdoor journal drawing.