REQUIREMENTS
(ensure you have the requirements of the mods below as well)
Seasons of Skyrim For seasonal changes
Flora Additions - Snow Gums For tree placements in the world
Snow Gums - Small Improvements and 3D LODS Tree appearance (my mod uses the vanilla bark, not the alternative bark offered in this mod)

Load my esp (flagged esl) after the above.

Non bronze version = Snow gums in autumn sport vivid red leaves. They are leafless in winter with snow speckled bark.

Bronze version -= Snow gums in autumn sport bronze leaves. They are quite dark generally but in direct sunlight you can see more yellow/gold tones. They are leafless in winter with snow speckled bark. This one has leaves that look more like what actual Snow Gums look in fall/winter when I do a Google search.

Chose one version, not both.

I uploaded more pics this time showing some different weathers and time of day (mostly for the bronze).

Also I didn't do anything in regard to LODs but the seasonal changes seem to show up at a fair distance away at least in my game. See screenshots (I don't have my LODS build in game yet).

Works in my game. I hope it works for everyone else too :)