To upload a photo to your Flow profile, sign in to your Dashboard using your login credentials and then click your Profile to open the main window, then select Profile:
Profile Settings
Here, you will see your Profile Settings and other details that you can update. Click Update Photo and select a picture from your computer.
Only .PNG and .JPG files are supported
After selecting a picture, it will automatically be saved in your profile photo. If you want to input other information in the available fields make sure you click Save.
Note: You can not delete an existing profile photo, but you can upload/replace it.