If you want to show the author of the course you can use this add-on for Elementor. Once you add it to the post/page, from the configuration menu you will find the following settings.

Content

Profile Picture

Toggle to enable the profile picture thumbnail of the author.

Display Name

Toggle to enable the Author’s display name

Link

Use this drop down to select the link target (between new window and same window)

Layout

Pick between a vertical and horizontal layout. This is a responsive function, so you can edit for different screen sizes. 

Alignment

Pick an alignment for the content in this addon.

Style

Image

Size: Pick a size for the profile image. This is a responsive function, so you can edit for different screen sizes. 

Gap: Pick a size for the gap in between the profile image and the admin label. This is a responsive function, so you can edit for different screen sizes. 

Border Type: Pick a border type for the image. 

Border Radius: Pick a border radius for the image. Set 0 for a square image.  Add a value to add a rounded square look. You can edit the radius individually and collectively. 

Box Shadow: Use this drop-down menu to add a box shadow effect on the image. 

Label

Color: Choose the color of the label text from a wide range of colors from the color palette.

Typography: Choose your desired typography from this section of the settings. You can choose between global typography settings and custom typography.

Name 

Color: Choose the color of the name text from a wide range of colors from the color palette.

Typography: Choose your desired typography from this section of the settings. You can choose between global typography settings and custom typography.