1girl arknights armored_boots black_gloves black_shorts boots bright_pupils closed_mouth e-bushi fartooth_(arknights) feather_hair gloves grey_hair gun highres holding holding_weapon knee_boots knee_pads long_hair long_sleeves looking_at_viewer rifle shin_guards shirt short_shorts shorts simple_background sniper_rifle solo thigh_pouch thigh_strap very_long_hair visor_(armor) weapon white_background white_shirt yellow_eyes