Low-angle anime illustration of a white-haired swordsman

Vertical 9:16 anime illustration, extreme low-angle shot looking up at a young swordsman in three-quarter back view, head turned in profile to glance down over his shoulder. Messy white hair with pale blue shading tied in a loose low ponytail, a single sharp violet eye visible, small stud earring, cold calm expression, clean face with no extra facial features. Oversized slate-gray hoodie with the hood resting on his back, a bold white zigzag stripe running down the full length of the sleeve, baggy white cargo pants with a webbing belt. One hand grips a katana just behind the guard, five clearly drawn fingers wrapped around the hilt. The katana has a normal-length hilt with white-and-brown diamond wrapping, an oval black iron guard, and a bare steel blade with a wavy temper line extending diagonally toward the lower right corner. The lower left corner is empty except for the folds of his clothing. Background: soft gray-lavender dusk sky, out-of-focus teal utility poles and power lines, glowing coral-red light shapes, a few red petals drifting. Flat cel shading, loose sketchy ink linework with varying line weight, muted gray-purple palette with coral-red accents, subtle film grain.