Back in the day, our faces were small because we didn't eat well:
[C]raniofacial differences between contemporary men and women are less pronounced than they were in the 16th century. [...] For example, the facial structure of modern Spanish females is much larger than the structure of 16th century females. This difference may stem from improved nutrition or other environmental factors.
But now our faces are big, and sometimes in photographs we ask our little-faced friends to sit slightly in front of us.