Coppermine, 4images gallery, or gallery to use for a website

I have access to Coppermine, 4images gallery, & gallery to build photo galleries for a hosted site. I am looking for something to show off both photos and jpegs of graphic art. I would like something that would be professional and easy to understand, though it can be complex and allow for my own creativity in layouts. I know css and html and I am learning a little php. I am teaching myself how to navigate wordpress. Which programs give:
1) the most versatile layouts
2) allow for password protection
3)watermarks (though I could put those in myself in lightroom)
4)thumbnails and larger image display
5)good instructions on how to set up and do the above
6)maybe even the possibility of protected sub pages or directories if I take pictures and only want some people to see them.
Please help and I hope that others will benefit from this as well.