A few useful brushes

I've been using lots of brush sets that I've downloaded from various people for so long but found that I only used a handful of them, so I decided to make some of my own to use. These are the sort of brushes that I use for about 90% of my work. This the first set of custom brushes that I've made, so be kind! Though I haven't made a complete painting with them yet, I did test them out a lot, so they should be fine.

These were made using Photoshop CS4.

1 through 4 are what I use most often for everything
5 & 6 are for painting dirt/ground
7 & 8 are two different types of leaves/foliage
9 is grass
10 is for painting trees/branches, while 11 is for texturing them
12 & 13 are for hair
14 is just an all-purpose texture brush, as is 15

You don't have to credit me if you make anything with them, but a would be nice. Please do not upload these brushes elsewhere. Thanks, and enjoy!