I need some Graphic Design for my book cover

Hello, I need a stylish, eye-catching Cover image for an Amazon paperback and Kindle book. Here are a few things I'm looking for: 1--The final graphic package should include a flat image that fits Amazon's platform. So I’m looking for an 1880 x 2500 width/ length sized image. 2--I will supply a cartoon vector image. I need you to incorporate this image with the final product. 3--The main title is the most important element of this Cover. It needs to catch the eye. Plus , this is for the Amazon platform. So a user needs to be able to see the title on a thumbnail size of 90 to 125 pixels wide. This is SUPER important! 4--The image will also include a lengthy sub-title and my author name. 5--I will also supply URLs of sample Cover images that I like and think work on the Amazon platform. Please use these as inspiration; but don't plagiarize or rip off any existing designs. When replying, please include the words "yellow water buffalo." That way I know you've read this entire description and understand what's required for this project. Finally, I'm on the hunt for a long-term working relationship with a book Cover designer. So let me know if you're interested in future work. Feel free to use the private message board if you have any questions or need further clarification.