Here's a thread where you can share your brushes (PS/GIMP) with others!
If you have some good brushes that you want to share, why not upload them? I suggest using FileDen to upload the files. It should automatically give you a link that will work on Gaia forums. n.n
Photoshop Brushes
Square.abr
A great set that can be used for digital painting.
GIMP Brushes
none yet. sad
