When you are a staff member and don't have access to the access list (in Administration -> Configure site -> Site options -> User settings -> "Staff report access" set to "No", the user search page doesn't display the profile pictures correctly, but all next to each other (see attachment).
Mahara 15.10+
When you are a staff member and don't have access to the access list (in Administration -> Configure site -> Site options -> User settings -> "Staff report access" set to "No", the user search page doesn't display the profile pictures correctly, but all next to each other (see attachment).