I've been looking for this sort of thing for a while now so I got excited when I saw this thread!
There seems to be quite a shortage of Discworld-themed merchandise to adorn your book collection with... but maybe that's a good thing! The word 'merchandise' has bad connotations, at least in my eyes.
In a positive light, at least with these models you have to assemble them and paint them yourself. A lot of it is down to an individual's effort and their own perceptions of the look and feel of the Disc's characters.
I'm lacking in my painting skills but I think I'll have to give these a try. It'd be great for people to post pictures of their painted minatures if anyone else decides to have a go!
Very best wishes,
Andrew