"The Bridge" by Edvard Munch

"Squiggles" by Vincent VanGogh 

"The Soda Jerk" by Edward Hopper

"The Smirk" ...

and "Bad Breath" by Leonardo Da Vinci.
But a photographer might snap as many pictures in an afternoon as an easel artist paints in a career. If he were to title each he might come to the agonizing realization that a lot of his pictures bear striking similarities, that he pretty much keeps taking the same half-dozen pictures over and over again.

But do we really want our works to be known as "dcr112378.jpg" or some such? What is the right approach? Hopefully you're not expecting an answer from me at this point, but I can proffer this -
Title only for good reason, and after careful consideration....