Hi, I made some brushes and simple patterns for krita: http://db.tt/Mnt77664 , do what you what with them. Hope that the icons are acceptable.
I'm using the 2.8 pre-alpha, I don't know if the presets work correctly with older versions.
An example :

Awesome bird! And I'll check out the presets.

Thanks Boudewijn.

I added some presets -> http://corvocollorosso.deviantart.com/art/Corvo-Krita-398259032