I can’t figure out how to put an image in the header image area without having the site title and tagline appearing over it. See attached image 1. Nothing in the logo image.
Oddly, if I put the same image in the logo area I see one image superimposed on the other, and no site title and tagline – see image 2.
I think you’re right that I need a larger image, though, for any of these to work.