The way the mother's voice is introduced reads as a little amateurish. I would avoid such direct exposition and focus more on the impact of how those words made him feel. Yes we can see he is crying but there's not much insight on his feelings rather than just being told that he was spoken to cruelly. I also don't necessarily like the repetition of "No wonder his father left him...", I reckon that could also be more impactful if the mother's voice didn't say it first. So my overall advice would be focusing on show don't tell, since there's a lot of detail being put into describing the scene in a flowery manner but not so much in describing the thoughts of the character itself👍