Maybe I was not clear with my idea.
For example a business card selling company having many different kinds of business card templates to chouse from. Each template would have a example card representing the template.
For English pages it would show a card layout with English words like
phone:
telephone:
telefax:
etc.
For Finnish customers it would show sample card with Finnish words.
These templates would have fixed graphical layout, but the text content totally defined by customer. This way there is no misunderstanding which one user has purchased as customer will provide the text content to the card him self.
Showing English customers a Finnish business card as example is not very good idea.
Reason why I prefer not to use product attributes as that makes it complicated to browse the products as product lists.
I menssioned business card cause that is one of my business, but same could be with any other where using is supplying the text content like brochures, flyers, t-shirt with custom text etc..
Maybe better example would have been a brochure. It is better to show a brochure template with text content that just the raw brochure template without any text.
Maybe one of my business card template could clarify my idea.
First template is with Finnish language content and the other in English.

**Idea on development **
One idea would be to have separate fields for different language images like the other language fields.
Other idea could be that user could upload separately other images with prefix like eng_mypic.jpg, fin_mypic.jpg and the image name saved in database just as myimage.jpg. The prefix could be same as defined in language section for ISO standard abreviation.
Admin panel could have a flag where multiple language image feature could be enabled or disabled by the site admin.
marksu
kuroi:
As requested this would cause you problems as you wouldn't know which product the customer was looking at when they purchased.
However, these sound like product attributes. Why not use Zen Cart attributes and attribute images for to display these product attributes and properly capture the customer's preference.