Gatsby and Larkin A level Comparison Advice

I am a student in year 13, and take Edexcel A Level English Language and Literature in which I compare Philip Larkens poem anthology: 'The Whitsun Weddings' and Fitzgeralds 'The Great Gatsby'. There are extremely limited resources for the comparisons of these two texts. so I was wondering if anyone can give me some good themes and/or characters that are comparable between the two. Thanks