Hey, alright, that is nice! I'm so glad you didn't give up. In this res, I can't see the horizontal line you mentioned, but you can maybe eliminate it by adding a snitch of turbulence to that material, or perhaps a fractal function on either the color or bump. If you want to see the actual sun rays shining down through the trees, that's fodder for a new thread -- it'll involved a volumetric sun at minimum, and there are some other tricks. Bloodsong was one of the first to play with rays, and I'm sure he'd have some tips to add. :) One thing I'd suggest is to add something among the trees or in the foreground to help the scale be more prominent. Like maybe a car that is small enough to drive through one of the trunks. A car has a relateable size, so scale would be able to be understood from the size of the car. Then the viewer would know instantly that these are huge trees. If not a car, perhaps some smaller trees or tiny plants scattered about. or a small cabin -- anything that could suggest a basic size to compare to. This is really looking good; your aunt is going to love it! :)