Unfortunately ‘WordPress’ has higher standards in terms of aesthetics. As higher quality items become available in the marketplace, approval requirements will increase to maintain appropriate marketplace quality.
While I’d be able to provide feedback as to how to get this approved, I can only do after it has crossed a certain threshold, quality wise. I’m sorry to say this isn’t there yet.
I would start another project if I were you. Don’t wait late and develop yourself. Examine the sensitivity to align intervals in completed projects. And apply to your new project. As you do, you will see that it develops. You get the same results every time you make the same mistake. See sample projects to do better. If you did this project, make sure you do better in a short time.
Best regards.