smile detection

I have a project that requires a smile detection and I found that openmv cam has a tutorial that shows how to do that using edge impulse

but I have some questions
1- does this tutorial works on any face or just the trained faces
2- and is there a tutorial to save pictures on SD card

It just works on the trained face. You need to assemble a large dataset for any face.

To save pictures on the SD card we have some examples that ship with the IDE.

yes I found the tutorials for the SD card

I have a another question

the TV shield does not have a tutorial or what kind of cable and TV it supports
can you give me any approach

It outputs NSTC video. It will work with any tv that supports ntsc.