Lacks the basics

"Dont show me this again" for quick deletion of multiple selections ? Nope.
Press space in "quicklook" style to preview image ? Nope.
Change icon spacing ? Nope.
Remove text descriptions ? Nope.

Id go on - but clearly this is just a thrown together app that should have been open sourced.

Benandthecapredocians about zGallery - Image Viewer