There are available in two versions of online photo galleries based by:
menalto Gallery 2.3.1 and menalto Gallery 3.0.2.
You can login to the admin panel and add albums and pictures.
You can manage them.

See below.

View Demo of Gallery2 based by menalto Gallery 2.3.1,
If you want to login, click on "Login" in the upper left corner

View Demo of Gallery3 based by menalto Gallery 3.0.2,
If you want to login, click on "Login" in the upper left corner

If you want to go through the whole process of installing
online galleries are also invited to the installation section.