Yes to saturated. Try to use desaturated leafs texture and change backlight from bright green to something more gray. Also try to make texture darker (around 100 mean on histogram in PS), and set diffuse color in material to 187,187,187. CryEngine in general doesn't like saturated colors on textures. Do it on all textures…
Nice work! Love the scene as a whole, the tree works well as an obvious focal point. And the tree is very well done. I have some issues with the shading on the ferns, they look a bit plastic to me. Might be a combination of the specular being a bit flat and that the diffuse is so monotone, I would throw in some color…
Thanks everyone for the kind words and great advices! Sorry about how late this response is. Been busy lately. @stickadtroja: Good suggestion as I really had no reference for the forest floor. @Gannon: I have changed the tree crown and edited the vertex normals so it shades right. @Zepic: I ended up using the Slide Tools…