Looking for a YA novel, 1980s, title and author unknown. About a girl living with a neglectful/abusive mother. In one scene, her mom leaves her alone in the house for days with no food (may or may not have locked her in) and when she comes home, tosses some groceries at the girl, who opens a can of spaghettios (or similar food) and the girl eats the contents of the can ravenously while the mom calls her an animal. I think the girl takes up painting (with watercolors?) under the tutelage of a neighbor. Title might include words like house (of)…, child (of)…, glass, light.