1girl adjusting_eyewear alternate_hairstyle bangs blonde_hair blue_eyes bow bowtie braid cabbie_hat casual closed_mouth commentary_request cropped_torso ei_(akinosakae) girls_und_panzer glasses green_jacket hair_tie hat jacket katyusha_(girls_und_panzer) light_frown long_sleeves looking_at_viewer one-hour_drawing_challenge open_clothes open_jacket red-framed_eyewear red_headwear red_shirt shirt short_hair simple_background solo turtleneck twitter_username upper_body white_background