The above image is by master Berserk mangaka Kentaro Miura, known for his intricate portrayals of fantastic horror and epic dark fantasy. He has decided to write manga for the female market instead.
Lady mangaka 羽海野チカ / Chika Umino, who writes for the female demographic, received the above fine cover for her 3月のライオン / March’s Lion manga.
She apparently first drew a special cover for Berserk:
How nice of her. Fans need not worry; this looks not to be a regular arrangement. Miura has these words by way of explanation: “Drawing in the style of Umino was good fun.” Not satisfied with designing “free” vocaloids it seems.
In case you were wondering about his usual work: