These 17 leaf detail brushes were created by Rebecca while she was practicing painting. Except for the first brush, they work like stamps and scatters for when you already have a base and just need to add foliage details to refine the finish. This pack is based on trees in her yard (middle Georgia, USA). They are free to use. Credit would be nice, but it is not necessary. Yes, these brushes can be used for commercial and non-commercial artworks. However, if you redistribute these brushes in your own set, you cannot charge for them; the brushes are always supposed to be 100% free for everyone to use!