Here’s one you generally don’t see everyday — A nice and obviously very useful Photoshop brush set with a focus on tree bark.

This is a fantastic cloud Photoshop brush set, and there is a laundry list of graphic designers who have used these brushes for their mixed-media artwork, and the results are fascinating.

No Photoshop brush oriented website is complete without a few lightning brush sets, and this one contains 9 brushes and has received a lot of positive comments.

Really cool set of 22 dirty roots made into a brush set.

Someone said they would make for great brain and nerve effects, and I have to agree.

Extremely nice high resolution cloud brush set.