Good day
I trust you are well,
Kindly note that you will have to access the mail client/google settings to update your profile pic, it is not directly linked to your domain email.
Please follow below link:
https://support.google.com/mail/answer/35529?co=GENIE.Platform%3DDesktop&hl=en
If you require further assistance,
please send a message to our WhatsApp helpline:
https://whatsapp.afrihost.com
WhatsApp Help is available from 07h00 - 20h00 Monday - Friday
or visit our Help Centre:
https://help.afrihost.com/
or see our FAQ page:
http://faq.afrihost.com
Thank you