So it's just for featuring art that's related to Toribash then? If it is then your draft seems fine.

If it isn't and the thread just celebrates and memorialises good art in general, well there'd be no need for the categories (with their separate threads) as they would just limit the forms of art that could be submitted. Better to just have one general showcase thread if it's inclusive of non-Toribash art. Also just for ease of access (even if we're just featuring Toribash art), it'd be more convenient to view all the great art in one place, as opposed to strewn out across several threads.

I think a thread featuring great art in general (including Toribash art) is cooler than a thread that features Toribash art only, but that's just me.