What size are the photos?
Borrowed from shipscript :
Zoom and supersize depend on the size of the original photo you upload to eBay.
If the longest side of your photo is:
under 500 pixels, eBay will reject the photo. A larger photo can be made too small if you crop with eBay's editor.
under 640 pixels (500-639), neither supersize popup nor mouseover zoom is available. The static photo may be displayed as small as 300 pixels.
under 800 pixels (640-799), a supersize popup will be available, but there will be no mouseover zoom.
up to 1600 pixels (800-1600), both supersize and zoom will be available.
over 1600 pixels, eBay will shrink the master image to 1600 pixels and the above will apply.
disneyshopper
Volunteer Community Member