At the beginning I thought just of making a sample, but in the end it had became a complete set of brushes.
It contains some trees you will find in the mountains, also some dead trees:
If you want the whole set, which contains 16 Brushes with a range from 2127-2500 Pixels, click here
Other things that might be interesting for you:Sping and Summer Tree BrushesHigh Res Bird Brushes
Comments are very welcome!