This widget will only appear on homepage.
Add 3 widgets under “Featured Items” widget, you can have all 3 items of featured posts, all 3 items of featured pages, or mixed.
Please not that you cannot choose the image on your own, WordPress will automatically choose the featured image you upload or the first image of your post if you do not have featured image on your post or page.
Genesis Featured Post & Featured Page
Follow this setting for genesis-featured page widget (see the red box) :
Follow this setting for genesis-featured post widget (see the red box) :