OT Before-After : Sliders slipls out of the images

Thank you for your reply but unfortunately is still not showing anything else but the first code.
I moved the files to the folder but nothing.
In any case the first code that is working, as you can see, is getting the pictures form a costum folder, the second code is not working in any way,

WORKING
{twenty}image1=images/images/coverimages/primadopo/1prima.jpg|image2=images/images/coverimages/primadopo/2dopo.jpg|columnwidth=12{twenty}

NOT WORKING
{twenty}image1=3prima.JPG|image2=4dopo.JPG|columnwidth=6{twenty}
{twenty}image1=3prima.JPG|image2=4dopo.JPG|columnwidth=12{twenty}

If I replicae the first code:
{twenty}image1=images/images/coverimages/primadopo/1prima.jpg|image2=images/images/coverimages/primadopo/2dopo.jpg|columnwidth=12{twenty}
{twenty}image1=images/images/coverimages/primadopo/1prima.jpg|image2=images/images/coverimages/primadopo/2dopo.jpg|columnwidth=12{twenty}

it works showing both of them.
I do not iunderstand how to create a new image., should I use the panel? but how? Isn't enough to duplicate the code and just change the images?

Thank you again very much for your support
Piero

Could you please send info access admin to email contact: contact(at)omegatheme(dot)com
I'll check it.

email keeps bouncing back, can you send correct address? thank you

email contact : contact@omegatheme.com
I have type contact(at)omegatheme(dot)com because sometimes scan system "@" and block email

I understood the sintax needs and send to the correct address but it keep giving error.

Can you try writing me: info(at)pieroannoni(dot)com
thank you