Featured image not working/cyclone slider problem

Hi all, I’m trying to put a slider in using the featured image and my images won’t show up for some reason on my static landing page. Instead, I did this using the cyclone slider plugin and it looks great on the computer, but looks awful on the mobile. It covers up the menu and for some reason my header won’t show up. I know pin board typically is mobile friendly as I’ve seen other sites come up just fine. Any suggestions either on how to get the featured image to work or to get the cyclone slider to appear better on my homepage? Thanks for the help!

Crystalkorellphotography.com