Useful but needs some more features/settings

Useful for people not using Apple Photos App or iPhoto

However I miss following features, I hope the developer will add them (looks pretty easy):
1) Adjust the sorting order (like date modified, date added, name, size)
2) MIss also the possibility to adjust the thumbnail size
3) Would be nice if it would show also the movies in thumbnail mode (and open quictime when double-clicking on the movie thumbnail)

I will update my rating to 5star once these are implemented

Other suggestions:
1) Have a split view thumbnails on a left pane and full image on the right pane. Like for a pdf in preview
2) Have a split view with files (finder like) on in the right pane and images in the right pane

Dreg2000 about Image Viewer