Image Gallery! But I have no video tutorial yet

I've seen so many people asking how to show an Image Gallery(Album or CG gallery), how to lock, unlock and whatnot.
I was planning to upload it later, once I have uploaded a video. But my conscience couldn't take it that I could have helped other people and I didn't because "my youtube video isn't ready". Thanks to my conscience, it's here~

It's free. No credits needed.

I'll update this later to have more pages. I'll upload multiple versions also for those who like simplicity.

If you also want to help others by sharing your GUI, you can send it to me and I'll code it.  Of course, it will be available to the public. You can reach me in discord Zeil#4950.