If anyone has a moment today and would like to comment, I would appreciate extra eyes on the test upload of images on beta at: http://commons.wikimedia.beta.wmflabs.org/w/index.php?title=Category:Images_...
The way GWT handles the Artwork template is not ideal, and things like the use of a hyphen in the filename, or the creator template for non-existent authors are not user customizable. If I proceed with this run as is, then I will also need to run a little post-upload house-keeping on the way apostrophes have been converted to html codes.
This run should be around 2,000 images and is limited to pre-20th century artworks from Japan. If this works well, then I'll look at other collections themes. I may need to tweak some category mapping in the background but the source of metadata as well as the image is now direct from the Rijksmuseum. Unfortunately there was limited reliable metadata in English, so I have stuck to one language.
I suggest comments are raised on the project page at https://commons.wikimedia.org/wiki/Commons:Batch_uploading/Art_of_Japan_in_the_Rijksmuseum (opinions section) unless they are of more general interest for all GWT users.
Fae