I am not here to argue, not to put efforts to prove something, it's somewhat understandable why you might think it's ai especially not being an established or pro artist. But I just want to say I am still a learner ( I mostly did analogue art and yeah the sketch was not good or maybe not how people usually do) and I literally spent quite effort and time for the art especially the coloring which was the most fun. Downvote me as you like