Hello
This is joomla image slider (
ordasoft.com/os-touch-slider.html), it show images exactly as you set, amy be with some spec effects.
We haven't in slider possibility show big image when you click on it.
If you need show big images, maybe better for you our Joomla image gallery. Please check Image gallery details:
ordasoft.com/os-image-gallery.html
Please check Joomla image Gallery demo:
ordasvit.com/os-responsive-image-gallery/
Regards
Andrew
OrdaSoft team