Bad Little Robot

Owl Gallery is a lightweight and flexible image gallery plugin that allows users to create and manage galleries. Easily add images, arrange them in any order, and display anywhere on your site.
Features:
Custom post type “owl-gallery” for managing image collections
Upload and manage multiple images per gallery
Drag-and-drop image arrangement
Shortcode support for easy embedding
Responsive and mobile-friendly design
Works seamlessly with most themes
Utilizes spotlight.js
<h3>Credits</h3>
Developed by Bad Little Robot.

Owl Gallery

Lightweight and flexible image gallery. Add images, arrange them in any order, and display beautiful galleries

Factory42

Factory Featured Plugin displays a set amount of posts in a loop with a custom field image and links to that post, making a gallery of images linked to the posts.
Has configurable settings, such as; 
* Image Width and Height 
* Set the category to pull posts from 
* Set the amount of posts to show.
Nice and easy way to present a certain category of posts in a widget area. Have a look at the Sceenshots to get a better idea of what it looks like.

Featured Factory

Displays a set amount of posts in block with custom field images. Configurable from the Widgets panel.

Owl Gallery vs Featured Factory