While it's mixed with a Tear Jerker, it's repeated during the final day, when Fagin just mournfully decides to pet Oliver for some form of comfort. His pets are clearly his best source of uplift in his very troubled life.
The song Jenny sings while playing the piano, followed with a montage of her with Oliver, and finally, going to bed together.
And the ending, much like the endings to every other Disney film... just before Sykes dies, he tosses Oliver off of him. Jenny checks if Oliver is okay, but he seemed like he was dead... until the little kitten lets out a mew. And the very end, with its reprise of "Why Should I Worry" involves 3 other CrowningMomenttropes along with this, combined.
Of course, Dodger being Dodger, when he sees Rita watching the cuteness, he shoots her a "yeah, and?" sort of look that's adorable in its own right.
Fagin giving up his chance to get the ransom money for Oliver, by pretending to find the kitten so he can return him to Jenny. Not to mention Jenny's reaction to having him back. Too bad Sykes had to come and spoil it.
Oliver's distress at Jenny's abduction (though crossed with Tear Jerker). Then when Dodger firmly declares "Don't worry, kid, we'll get her back", Oliver is obviously both surprised and touched that Dodger would go after the kid he earlier professed to resent.
Jenny hugging Fagin at the end, given all the crud Fagin takes throughout the whole movie.
When Jenny goes out to look for Oliver, she brings Georgette, who is angry and miserable about being dragged out in the rain. When Fagin shows up, however, Georgette immediately starts growling at him when he gets too close to Jenny. She may be a pampered poodle, but she still has the protective dog instincts when it comes to Jenny.
Shortly afterward when Jenny is crying helplessly, Georgette can be seen with a face that clearly says My God, What Have I Done?. She clearly feels remorseful about her role in taking Oliver.
As Fagin and his dogs leave Jenny's house, Winston cover in smoke from Fagin's scooter smiles and exclaims "What a delightful scoundrel."
After Oliver is discovered and interrogated by Fagin's dogs, he nervously explains his past meeting with Dodger. While the others go to laugh at Dodger, Rita gives Oliver a subtle reassuring wink, making clear he's in no real danger.