Ugh, leaving the art aside which is pretty appealing, I find various things that appeared obnoxious:
First, a noble lady cannot excuse themselves like thay. It's not "OKAY I'M DONE", but you ask for permission xD
Second, what Mojo said about the food - they don't throw it away. Third, what do you mean Japan doesn't have a 'high class' if they have a freakish emperor xD Fourth, what a boorish prince that keeps pushing for the company of a girl who obviously is rejecting him. Forcing an engagement like that, truly rude. The family quite laid back, as well. It seems there's no need for their daughter's opinion. Truly plain