Thanks for the plug MadDog :) You've certainly got a great start here. No hard lines in your terrains, your foliage color doesn't come off as plastic and it's got really good depth to it as well as believable texture scale. If you don't mind I'll pop in a couple of suggestions that you can take or leave. :) Firstly you might consider backing off the foliage density just a little, both in the underbrush and in the canopy trees. This combined with more diversity of scale and placement will give you much less of a definable top to the trees and the undergrowth. Second, try a little more run-out by putting a few more trees leaving the scene, the sudden end to the forest in this image can be spotted. However if your shooting for an island that fills the frame, you can feel free to ignore me. :) Lastly the textures on your dock planks have the sort of spiral star effect that sometimes pops up, you might try changing the mapping of the planks to cylindrical. You may have to adjust the scale back to where you like it but it may clear up the stars. Just my two cents and I do hope you don't take it the wrong way. The work your investing is obvious, I'm just very opinionated and mouthy. :) I do look forward to the final render. :)