This is after Pip meets his convict in the marsh when he comes back with food he stole from his sister. This scene in important because if he hadn't helped the convict, he never would have gone to London and received his fortune. The bread represents the food motif, the chains represent bondage and imprisonment, and the grey sky represents the mist/fog motif.
This is when Pip first comes to the Satis House and meets Miss Havisham and Estella. This scene is important because if he hadn't gone to the house, he never would have fallen in love with Estella, and Miss Havisham's plan for her to break Pip's heart wouldn't have worked. Miss Havisham's yellow dress represents the yellow motif, the clock represents the time motif, and the candles are the candles/light motif.
This is when Pip meets his benefactor, Magwitch, who is also his convict. This is important because this Is when Pip begins to feel sorry for the way he treated Joe and Biddy. He wishes that he had never left the forge, because he would've been happier there. The candles represents the candle/light motif. That night when he met Magwitch, it was really dark and stormy, and he was scared. The hands motif is represented by Magwitch holding out his hand to Pip, wanting a relationship with him, the clothing motif is represented by Pip's suit, because it shows that he's a higher class now.