Explore Photos library backup without messing with iCloud

Hi,

I accidentally deleted a set of pictures from an album in my Photos library.

I use Time Machine and I would like to go back to previous library version to get them back.

My concern is wether this will interfere with the actual pics in iCloud if I open the old library with Photos. Will my current library be replaced?

Thank you very much in advanced.

Julen.

PD: I use the latest versions of OS X and Photos.