This image shows a portion of the Create compute instance page.
There is a banner at the top with a Menu icon, a search icon, a regions drop-down list, and icons for Cloud Shell, announcements, help,  languages, and user profile.

Under Image and shape there is text "A shape (link) is a template that determines the number of CPUs, amount of memory, and other resources allocated to an instance. The image is the operating system that runs on top of the shape."

Under Image there is a default image, Oracle Linux 7.9, Image Build: 2021.08.27-0. 

There is a Change Image button, which is surrounded by a red border.

Under Shape there is a default shape, VM.Standard.E4.Flex, Virtual machine, 1 core OCPU, 16 GB memory, 1 Gbps network bandwidth. There is a button Change shape.

There is a link Show advanced options.