Hey Russell, I’d personally be careful getting a book cover from Fiverr. With a site like that, designers aren’t going to spend a huge amount of time on your cover because of how little you pay. You also need to make sure that they’ve bought the rights to the images that are used – I’ve heard of authors who have discovered after publication that the rights for the images haven’t been purchased and they’ve found themselves in trouble. You may also be more likely to be given a premade cover that multiple authors have used due to the aforementioned time constraints.