Midoriya trained for 10 months to build his body and after his training he was jacked [Lean muscular build] right, so why does he look off model/half of his size/skinny from entrance exam till the end of sports festival? All other characters are designed well except him In the USJ arc, all the characters look great but Midoriya looks so skinny. In the Hero Killer arc, he again has the same physique as the one in the Beach scene like literally the same.
Is this just due the Art style changes by the author/artist in both Anime and Manga or are there any reasons for him to be skinny after that beach scene?