gm_alex

This release is a beta release, so error could occur. If you notice an issue please create a issue here: https://github.com/GM-Alex/user-access-manager-nextgen-gallery-extension/issues 
This plugin allows you to use the <a href="https://wordpress.org/extend/plugins/user-access-manager/" rel="ugc">User Access Manager</a>-Plugin to control the access for the <a href="https://wordpress.org/extend/plugins/nextgen-gallery/" rel="ugc">NextGEN Galley</a>-Plugin. You can lock Albums, Galleries and Images.
Feature list
<ul>
<li>Hide albums (if no access)</li>
<li>User-defined album content (if no access)</li>
<li>Hide galleries (if no access)</li>
<li>User-defined gallery title (if no access)</li>
<li>User-defined gallery content (if no access)</li>
<li>Hide images (if no access)</li>
</ul>

User Access Manager – NextGEN Gallery Extension

With this plugin you can use the "User Access Manager" to control the access for the "NextGen Gallery".

beautifultemplates

<a href="http://carinatheme.com" title="Premium WordPress Themes & Plugins" rel="nofollow ugc"></a> 
ST Gallery WP is great plugin to create a beautiful slider for your site.
Please check demos:
<ul>
<li><a href="http://beautiful-templates.com/demo/wordpress/plugin/?page_id=2" rel="nofollow ugc">Demo 1</a></li>
<li><a href="http://beautiful-templates.com/demo/wordpress/plugin/?page_id=8" rel="nofollow ugc">Demo 2</a></li>
<li><a href="http://beautiful-templates.com/demo/wordpress/plugin/?page_id=10" rel="nofollow ugc">Demo 3</a></li>
<li><a href="http://beautiful-templates.com/demo/wordpress/plugin/?page_id=12" rel="nofollow ugc">Demo 4</a></li>
</ul>
For more information you can check in our site <a href="http://carinatheme.com" rel="nofollow ugc">Premium WordPress Theme Club</a>
<h4>Feature:</h4>
<ul>
<li>7 Theme</li>
<li>38 Animation effects</li>
<li>Using HTML5, CSS3, jQuery, Ajax</li>
<li>100% Responsive</li>
<li>iPhone, iPad & touch support.</li>
<li>Multiple themes</li>
<li>Unlimited gallery, unlimited photos</li>
<li>Drag & Drop to sort images</li>
<li>Using images in Library, Posts and images URL</li>
<li>Import & Export gallery easy…</li>
</ul>
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If you need more support or customize. Please visit our Please visit our <a href="http://carinatheme.com" rel="nofollow ugc">Premium WordPress Club</a>
You are welcome.

ST Gallery WP

ST Gallery WP is great plugin to create a beautiful image slider for your site.

User Access Manager – NextGEN Gallery Extension vs ST Gallery WP