How can I seamlessly blend 3 images together with the connecting images share elements

I want to blend three separate images together (as in the arrangement image) Where the sides of the images that touch meld into the other. Like Image 1 will have an element that seamlessly blends into an element of image 3 and the same with image 2

[edit] I should also add that I want the theme/scene of each image to remain intact. The images themes that I am using is; (image1) Two potion vials sitting on a rock during sunrise. (image 2) A hand on a large magical stone. (image 3 a scene of a medieval village