The painting is called, "fuck abstraction!" and the handmaiden artist claims it's not literal:

Miriam Cahn, a Swiss artist in her seventies, has claimed that the work, supposedly a tribute of sorts to victims of alleged war crimes in Bucha, Ukraine, does not depict a man and a child. She claims the victim’s childlike size and physique is intended to represent “the corporeal power of the oppressor, and the fragility of the oppressed” — but many are unconvinced.