A couple of the flower bunches get rearranged on Patsy's desk between takes.
When Patsy tells Saffy her story, there aren't any DNA models within reach. When the flashback ends, she's suddenly playing with one.
Saffron mentions she's been living with her mother for 18 years. In an earlier episode of Series 1 she was said to be 16 years old, later proven in the Series 4 episode "Paris" where her passport is shown and reveals her birth year as 1975.