@Chuggi, here is an image what the water looks like (even the lakes) whenever I put in a custom, same-sized .dds that I made: EDIT: Rhye reports this problem too, I think
I have a feeling all the graphics pros here are using photoshop- that may indeed be why I am getting that problem, especially, as you mentioned, because it doesn't convert(?)
I think I have photoshop somewhere, though I haven't used it in a while, I'll find the plugin and give it a try
As for the light forest, thanks for giving it a try

I don't remember if I succeeded in the coding, but either importing via coding and trying to adjust it to the old scheme or going into 3dsmax and importing/deleting oldtress/attaching new ones didn't work. For some reason whenever I take the trees into 3ds max the trees lose all their transparency underneath the texture, as you can see in my screenshot above in one of the forests. You, being a graphic guru, would probably know what to do with that.
So what I'd ask is if you could try modifying the current deciduous forest so that it is skimpier-looking and orangey (as close as possible to the colon. tree), it would be greatly appreciated. This could probably even be done with modifying the tree texture alone, or making a copy of the old one, modifying it and assigning it to the new "light forest" in nifviewer. This would be one amazing feature. EDIT: you're a lot more experienced than me, but I'll try my hand at this and if I can achieve anything in this regard I'll let you know
I would also like to point out that, unlike the light forest, the deciduous forest can be transferred over to bts no problem. As you can see in the screenshot, it's pretty nice- probably brighter than the stuff you have now but that could easily be toned down. It's a little more detailed.
With the coral, are you able to put it underwater? Does coral often come above the water? If coral doesn't usually come above water, that would be the only reason I reccomend a flat, rainbow coloured texture, unless you're able to somehow stick it below the water. Either way, I look forward to it
@Capo: I don't know why it's happening but I am not getting this problem. I can easily tell them apart in-game.
Keep up the good work Chuggi!