1 - 'Perswaition group' Staffordshire piece
2 - Glass piece entitled "Persuasion", 1809
3 - Arbour Staffordshire, 1750
It is argued that #2 (1809) inspired #1 (date uncertain), and the resemblance is strong. Thus,, #1 must not have been inspired by Jane Austen's later, 1817 novel, 'Persuasion'. Looking at #3, dated 1750, we can see that this theme of persuasion was not too different to earlier pieces depicting an arbour romance. I would like to imagine that Austen's novel itself was inspired by the likes of #1. Perhaps a figure she knew as a child or younger woman. I think it would be fitting that the novel, 'Persuasion', would have been inspired by the likes of number one, (with spelling corrected), because Saffordshire figures themselves were emblematic of a rising middle class, becoming able to both make and purchase art and decorations. Austen, especially in 'Persuasion', illustrated strains of class difference of that time. Apparently, Stafforshire figures spanned from at least around 1740 to 1860.
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Note: I actually had to correct the spelling of persuasion in Wikipedia, (from pursuasion), precisely where the text was discussing the (perswaition) misspelling of persuasion(!)