FileExplorerGallery will let you quickly view all images in the currently opened folder.
Based on the image gallery in Atlasee
Simply press F12 (default shortcut, can be changed) to open it up, when you are in the desired folder
Once the FileExplorerGallery is opened, you can navigate between your images using keyboard or mouse.
You can zoom in by double-clicking or using a mouse scroll. To reset back, press a right mouse button.
You can rotate your image by pressing the rotate icon on the top border
To run a slideshow of your images (you can configure the duration in the settings), press the slideshow button on the top border.
To delete currently displayed image, press "Delete" button or trash can icon in the top bar
To save image after you rotated it, press "Ctrl+S" or save icon in the top bar
Right clicking the application tray icon you can open its settings.
FileExplorerGallery supports auto-update and can start on the Windows startup.
NOTE: After starting FileExplorerGallery, it might take up to 10 seconds before you can use it (Windows API to get opened File Explorer Windows needs to "warm up")