Between scenes, my canvas is showing the pictures and text in the right size I would like, but when I play back, some of the pictures are very small.  How do I fix this?

when the camera is where you want it to be for an element, make sure the element is selected, then click the "set camera" icon in the lower right corner to save that camera position for that element. Repeat for each element in the project.

if you meant something different, save your project to the cloud and tell customer support the name of it and which images are having a problem

or save your project as a .scribe file and attach it here and mention which images are having a problem.

-Mike (videoscribe user)