One feature many of you may not be aware of is a WP feature giving you the ability to edit the Published date and time and schedule your published images for future dates. 

When processing images you'll see a "Published On" date and time right above the "Publish" button and an edit option.  Note that the time is a 24 hour clock so plan accordingly when editing the time. You can use this to do a few things to organize and manage publishing your images. 

You can group together your similar images by editing their publish time and date to be same date and hour, consecutive minutes. 

You can edit pictures all weekend and schedule them to publish at the beginning of a work week or schedule to have fresh images posting on specific days and times of the week.

Schedule images to publish when you're traveling or off-line for a period of time to keep fresh images posted on a regular basis.

Use it to market a new series by building a little buzz around the series - send out announcements that your new series will be launched at a specific date and time and auto-schedule the publishing of the images.

Indeed, a very good point! Especially when you use the "latest images" widget and do NOT want that similar images appear together. So far I used to publish images from draft at the desired time, but setting the date of course is a much better approach, thanks for pointing out!