Does anyone know where I can find the best brushes? I'm terrible at making my own (they always seem too soft and unnatural) and the brushes I can find for download, including the ones linked on the Worldpainter website, seem to have what looks like compression artefacts and spiked square edges that show up very visibly when painted on the map at no matter what scale. They need smoothing off, which once again leaves things horribly smooth and unnatural.
I see that other people are using brushes that show up very nicely and cleanly, including better versions of the ones I can find for download, but I can't find these brushes. I understand some of them might be for private use but surely there are some decent quality brushes that can be found somewhere? I'm not looking for hundreds, in fact I'd rather not have much more than 10 non-default brushes.