"I left it as a child": ambiguous meaning - either she left when she was a child or when a city was a child (it was vulnerable and she feels responsibility towards it)
"I am branded by the impression of sunlight": imagery of light - it will stay with her forever
Personification of the city: "I comb its hair and love its shining eyes (she has maternal love for the city) and "My city takes me dancing" (it is romantic and passionate lover)
"My city hides behind me" it is vulnerable and despite the fact she had to flee - she is strong.