Very difficult. Had the head of one agency want to see more, then defer the book to another agent, to eventually reject my proposal.
Been at it for about two years now, really discouraging despite how well put together my graphic novel is.
Had several agents want to see more to eventually reject it. Wish they gave detailed responses why. Guess its up to me ask
Just self publish tbh.
Instead of focusing on an agent. Use those resources to promote it after independently publishing.