Galleria - Image Gallery for uploading multiple images and viewing them as sliding images gallery
Other add-ons of interest
Glances - Integrate All Your Applications
Accomplish More Every Day. Spend your time on getting things done, not on finding information. Glances securely connects all of your apps and provides a simplified view of the data you need right when you need it, in real time.
Using the File upload field for image uploads? With Image Preview any file uploaded that is an image shows a preview of the image on Notes, Documents, custom modules, etc. Wherever the File field type is used. Works on detail views, edit views, list views, and subpanels.