Hey. yeah, textual integrity is actually a pretty important thing to understand for Cloudstreet. It refers to reading the text as a cohesive and logical whole. So, for this text you can talk about the way in which Winton has presented contrasting themes... uch as life and death, and hatred and forgivness, etc.
Textual integrity is also about whether the text answers the questions that it raises.
The fact that Winton offers no justification of some of the more obscure events in the text- such as the talking pig, also contributes to the textual integrity, as it replicates real life, in that not everything can be explained.
Hope that helps.