Triangle Party Flyer rejected, please Help!

Hello, can you please help me to understand, why this was rejected? Thanks a lot!!!

flyer_a5_preview_dash

u are a criminal buddy lol messing with such a cool background and effect on the right side with such a very flat (and i am still nice about mentioning only this lol) and not harmonious typo, this is really a crime in my view lol
i would also personally advise u to change triangles and display them in a different way (taking perspective into account) and try to introduce shades or different angles, potentially also motion blurs, too

Thank you for your true answer, maybe i took a lot of Austrian Taste in this Work, with your Help, i can try doing it better, thank you very much!!! (My First try to export a Work Outside my Country :smiley: )