"Not at all, or did you have (which would be awesome) problems deciding on whether this is a photograph or a rendering? Or is there too much visual noise?"
I guess because there is too much visual noise.
"May I ask you why? (I don't feel offended or so, I am just curious
)"
Its hard to tell precisely but the leaves of the tree are very uniform in orientation and position also the tree branches seems to follow some pattern.
Take a look at this image
[link] no branch is similar to another , i think that's what makes trees in nature look interesting.
I never expected you to add the L-System to picogen so quickly , congratulations you definitely deserve some rest now.