Scroll down to his/her enrolments.
Use the filters at the left to see a specific selection of the enrolments if necessary.
Click on the line of the enrolment(s) (but not on the project/subproject/team name) of which you want to download the enrolment photos.
Click on the 'Download' button (↓).
Click on 'Actions' in the right corner and select 'Download enrolment photos'.
The enrolment photo is downloaded to your computer. In case of several enrolment photos, you receive a ZIP file that includes them all.