Ow far is the attitude towards Cromwell in the Horation Ode compatible with attitudes evident in Marvells later writing?

The essay will require a very brief look at historical events which formed the basis for Marvells changing attitudes and I would also like you to focus on the Horation Ode but to also look at around 5 or so of his later works in detail which reflect his changing attitude toward Cromwell. If you require an further help please feel free to call me.
Referencing can be in the form of a bibliography as the essay will require secondary material. For the bibliography I will need the usual book/website/journal title, author, publication date and place.