Sitefinity 5.1 : adding image sitemap pages

Hi everybody,

I'm developing a custom top menu and want to add one picture per sitemap pages. I writed module like following attached image. In this structure, I enter sitefinity page name to Title fields and take images in codebehind. But this usage is not dynamical.

My question is  how can I generate the structure that will show me which image goes with which site map page? Is there any fields or component that will show all sitemap pages in custom module?

Thanks...