When designer Lynn Chen uploaded this PS Brush set on Behance, it went viral. The collection is divided into sections like as animals, greenery, and nature, and includes a large number of flora and fauna-themed brushes. These brushes are detailed, beautiful, and really artistic — and they’re completely free to use.
Lynn Chen is the designer.
Usage: Personal and commercial use are both free.
Lynn Chen Brush Set is available for download on Gumroad.