The other men are not waiters but they are dressed in white shirts with black trousers.  
On the far left is the shadowy silhouette of what appears to be a hooded man extending over the trees that gradually slope upward to the right through the painting.  The other men are not waiters but they are dressed in white shirts with black trousers.  The lone animal on the far left is white, with the next several figures being red, followed by several white ones and then a red animal on the far right.  The painting was a success at the 1853 Paris Salon despite its author needing police permission to wear masculine clothes so as to enter the titular location.  FTP, name this massive canvas by Rosa Bonheur.
On the far left is the shadowy silhouette of what appears to be a hooded man extending over the trees that gradually slope upward to the right through the painting.  
The Horse Fair or Le March?aux chevaux