Early optical toys

This is a video of my Thuaumatrope. It worked very well but if I could improve anything it would be a better drawing. 

This is a video of my Zoetrope. It worked very well. I personally made something that starts off innocent turns dark, surreal and blackly comic with a ball going through a mans face. I wouldn't personally improve it.

This is a video of my praxinascope. I like it as it is simple but I wish I could have made it a little bit more detailed. 

Praxinascope

Zoetrope

Thaumatrope