A lot of designers make one big mistake. They design the content too. But content can't be designed.
For example the name. All his designs use short names because they look beautiful. But in real life names can be much longer.
And ofcourse the pictures. It's nice to have round pictures but it is almost impossible to get nice round pictures from every employee.
So when you are designing (and this doesn't only apply to graphic design): test your design using a lot of different content:
Will it still work with longer names?
Will it still work with middle names?
Will it still work with bad / rectangle pictures?