A captivating pencil portrait of a red fox in autumn setting, executed with exceptional realism on white background using graphite pencils. Render the fox's distinctive facial features with its alert, intelligent expression, pointed ears with dark backs and white interiors, and bright eyes showing curiosity and cunning. The fur should be meticulously detailed showing the characteristic red-orange tones through varied gray values, white chest and throat with soft fluffy texture, black legs, and white-tipped tail. Use thousands of individual pencil strokes to create realistic fur direction and layering. Position the fox among fallen autumn leaves with each leaf showing detailed vein structure, curled edges, and varied tones suggesting different stages of decay. Include acorns, twigs, and forest floor debris with authentic textures. Add background elements like tree trunks with bark detail and soft-focus woodland vegetation. The fox's whiskers should be drawn as fine, delicate lines. Use sophisticated shading to show the three-dimensional form of the animal and create separation between subject and background. This wildlife portrait should capture the fox's characteristic alertness and beauty with gallery-quality artistry.