Yann at WP&amp;Co

<h4>Recent images in a Widget</h4>
Adds a very simple widget to show the recently added images of your blog as a list or galery of thumbnails.
You can choose to display any image of the library or only image that are actual post attachments.
Actual post attachments will have a link to the original post.
You can choose to display different images / galeries depending on pages based on original post tag and a custom field (meta).
You can then customize it with CSS if you like. It is possible to create galeries, featured posts, or visual recent posts lists.
Uses WordPress 2.8+ automatic thumbnail feature.
<h4>Active support</h4>
Drop me a line on my <a href="http://www.yann.com/en/wp-plugins/yd-recent-images" title="Yann Dubois' Recent Images widget for WordPress" rel="nofollow ugc">YD Recent Images plugin support site</a> to report bugs, ask for specific feature or improvement, or just tell me how you’re using the plugin. 
It’s still in an active development stage, with new features coming out on a regular basis.
<h3>Revisions</h3>
<ul>
<li>0.1.0. Initial beta release of 2010/10/25</li>
<li>0.1.1. Minor bugfixes & framework upgrade of 2010/10/26</li>
<li>0.2.0. Option to select only attached images & framework upgrade 2010/11/24</li>
<li>0.2.1. Options to choose number of images to display and select images with a specific tag</li>
</ul>
<h3>Did you like it?</h3>
Drop me a line on http://www.yann.com/en/wp-plugins/yd-recent-images
And… please rate this plugin –>

YD Recent Images

unclego

Lets you have your backend administration panel in english or any installed language, even if the rest of your blog is translated into another language. Language preferences can be set per user basis in user profile screen.
Tested on MultiSite.
Deals with frontend ajax requests
Notice: 
After release of WordPress 4.7 this plugin is a bit obsolete.
In WordPress 4.7 users are able to select their preferred locale (language) when editing their profile. Plugin add exact same functionality to pre 4.7 WordPress.
I still maintain it for people with outdated WordPress sites. And the plugin is still usefull for sites with outdated plugins that not obey get_user_locale(). 
<a href="https://make.wordpress.org/core/2016/11/07/user-admin-languages-and-locale-switching-in-4-7/" rel="nofollow ugc">More info</a>

Admin Language Per User

a must have for multilingual sites

Switch your backend administration panel in any installed language per user basis.

YD Recent Images vs Admin Language Per User