Gestalt Assignment

I used two different theories in this image.  The first one that I used was the similarity.  This is used with three of the "stop signs" saying "stop".  The forth "stop sign" says "start".  Even though this start sign has many similarities the other three, it is saying something totally different. 
The second theory I used, and this one was on accident was the figure/ground theory.  This is shown with the square in the middle of all of the "stop signs."