signed, dated and described on the reverse: 'MARTYNA CZECH | "MY HAPPY END" | 33x46 CM | olej na płótnie | 2020'. signed, dated and described on the stretcher: 'MARTYNA CZECH "MY HAPPYEND" 33x46 CM olej 2020'. signed, dated and described on the stretcher: 'MY HAPPY END, 2020, CZECH MARTYNA'