Be a Ruthless Editor.
Review your images and documents, during the first round pull out items that you believe connect with your story. Edit into three piles: yes, no and maybe. Next, review the "yes" pile using the same method, this time ask yourself: Does this connect with the story? The character? The event? See out images with quality (not necessarily physical quality, but the image itself).
Often we choose images based on our own emotions, think like an editor.
Every image selected must have purpose to the theme. Image editing and sequencing is an art. Intuition plays a huge role and powerful role, however, you must learn to remove your own emotion(s) from the process. Select images that express support the main plat or character.
Bring It To Life.
The investment of your time into editing the story and selecting images will be time well-spent when you bring it all together. During practice sessions, intuition become your friend. You'll recognize when something isn't working, where to add pauses, changes in body language, etc. There are numerous storytelling events everywhere, many offer rehearsal beforehand. Toastmasters' clubs are another resource to hone your storytelling (speaking) skills.
Practice, baby! It's all about practice. Not memorized, but part of you, naturally. Your story comes from your heart and delivered with passion. This is the secret.
How can I help you "historically speaking"? I've worked with others to develop a speech and produce books that tell a story–all with a historical foundation.