Problem on my slider

Hi everyone !

I got a design problem on a slider which use Cycle slideshow.
There is an example :
(Look on desktop)
I show 2 images from a multi-image collection field. Then my 3d image is a slide (using cycle2) which show all the multi-image collection.
My problem is : this slide begin at the first item of my multi-image collection, and this is problematic because we can see a big repetition ! :arrow_down:

I tried to use data-cycle doc like “starting-slide=2” but it doesn’t work.

Here’s the read-only link
I just need this slider to begin at the 3d item of my collection !

Big thanks by advance for your help, and pardon my english, I’m french :wink: