Rick "Tinyworlds" Hoppmann has released all of his wonderful forest photos under a non-commercial Creative Commons license. You can use it, remix it and share it yourself so long as you credit him and so long as you don't profit from it.
If you want to use my photos for commercial use (e.g. album covers), please send me an email: rick.kelgar(at)web.de
— Lars G. (@Mezaka_) June 5, 2016