(I notice it seems to be the same few letters coming up time and again. Time for a rule change???)
In the few picture games I started, I allow the next picture to start with any of the alphabets of the picture posted EXCEPT the first letter. So from "Ehrensvaerd" the next picture can start with - H / R / N / S / V / A / D
But that is up to the "owner" of the game to allow it or not.