Yep, I noticed photos were not allowed to create our texture but don't know if filters were forbidden or not because I used some Photoshop artistics filters.
Anyway here is
My entry
My textures sheets
My workflow
Well in fact, it's a bit the mess, I'm pretty sure I'll forget some steps as I rather tested/experimented and didn't pay really attention the tool/filers I used.
Moreover, I don't know If I'll use the correct words as my photoshop is in french
But basically, I firstly selected the trunk and memorize my selection.
I selected to brawn colours and made some filters-> render clouds, then I duplicated that layers, till there I remember lol...
I added some noise, don't remember well the value and played with the layer mod, I also did some "blur direction" to simulate the bark tree.
Added some different green colors to simulate moos and played with the colour correction and saturation to make some parts looking older than others..
I also use some renders-> sharpen and etc...
and finally created the occlusion map and overlayed it to the diffuse in photoshop.
Real size of maps are 1024x1024
Sorry, I'm not very accurate about stuff I did
Perhaps there is an option that allows us to check the action we did on the PSD file no !? If it's the case, I could tell probably tell you more
And also sorry for my english, I'm quite tired...