For people think that the art style changed Nakyum is getting older and losing baby fat bc he's getting older, I don't see a difference and Seungho is like in or in his early 30s, and as an artist art styles changes through time like preal boy, painter of the night, K's secret, and more Manwha's that art style changed, and there no big deal more then that Seungho and Nakyum are 4 aged apart so yea that could be another reason why and then been separated for whi know long, if you know your going to get bad red faces then don't share it, let people read.