Did we? I forgot if we have. If something happened in Two Towers, it'd be Yavanna trying to save Aragorn from the doom of the cliff. Guess she also had bad luck with falling of cliffs. Maybe the first fall here might make a bigger impact, then the second.

Yeah, they would be :) I was always planning of Yavanna to be growing in power.

If I go with the first one, which I am preferring at the moment. The second fall won't happen with Yavanna. Feel like this first one, gives her a bit more room to Develop. Either fall, would still effect Yavanna/Legolas the same way I think.