Documentation:
Image Box

Divi-Modules – Image Box loads your image into an image box. You set the box size, then scale, crop, rotate and flip the image within.

Image

Here you can upload your desired image, or enter in the URL for the image you would like to display. You can also use dynamic content to automatically load the Feature Image, Author Profile Pic, or Site Logo.

See here for modifying the image box.

See here for modifying the image itself.