trouble with my Nextgen plugin!?

I want to use my nextgen plugin and to show all the pictures like this one! https://www.automotiveaddicts.com/gumball-3000-coast-to-coast-2009-rally-across-america if you scroll down you will see a bunch of images and i wanted like that!

i tried doing it on mine but this is what it turn out! https://www.tunedtech.ca/featured/k-sportline-kia-rondo/

can someone tell me what do i have to do, for my image to show the one from automotiveaddict?