-New years resolutions.
Surely clickies might have bad habits as well and want to improve themselves? The pictures could involve these bad habits.
Would really allow us to tap into that dark side a bit and show clickies being jerks, inconsiderate, having bad habits, etc but promising to better themselves.

-Family.
A family picture, can depict practicly anything as long as the focus is some sort of family.
-Take your child to work day.
For clickies this can be quite special considering the many occupations of clickies.
-Music.
In some way, music is made on the picture. Maybe its a dragon with a ukelele, a hardrock band, an active dancefloor or even a spanish flamengo dance.
-Showing off.
Clickies might not always be humble. It could be a fun topic to go all out with. Like a rediculously fancy looking throne room of a king who receives a guest, a child showing off their skateboard moves, or a lavishly decorated coach with a princess riding past a princess in a small coach drawn by a single horse instead of six white horses.