Anime artist/artwork board?

How about a board or sub-board for talking about artists or artwork from specific anime? Got the idea from the Last Exile thread, as most people were talking about Range Murata's works.

Or do you think that would be too specific and not many people would post there?

You've just answered yourself. To create another board just for discussing a specific artist's works = narrow scope of discussions = only certain members are interested = few posts = waste of space and lack of moderation.

If you want to create an artist-specific threads you can post it in an already existing sections (spec anime, manga etc).

I recommend just making a thread in Arts and Digital Graphics or in Anime and Manga General Discussion and if the topic is popular enough I bet one of the mods would be willing to sticky it for you.