Tropenmuseum has provided us with a large collection of images from its collection. Within Commons these images are particularly relevant because there is so little available on the subjects covered by this collection.
Attribution to the GLAMs we are working with is vitally important. Providing an insight to how a collection is used determines subsidies.
As these images are by and large in a category, it is possible to use that category and accumulate data with it. GLAMorous informs about the number of articles using images in a category. Even more relevant is the BaGLAMa tool; this is where you find the number of page views for these images.
There is room for improvement; there is a template for the Tropenmuseum but it is not part of the data on most images from the Tropenmuseum. There are templates for creators like Isidore van Kinsbergen; they are not universally applied either.