Hey, Djipi. GREAT work on this texture conversion pack. You're doing a truely phenomenal job. So far, the only issue I have thus far is the flat grass textures, and segues between floor/wall. It apears particularly bad in Kokiri village, and I haven't even seen Hyrule Field, or the Castle Grounds, yet. The low contrast, simple grain effect you have doesn't produce enough variety, nor do I feel it fits the theme.
No offence. You've undertaken a HUGE project, and what you have accomplished is by no means anything to scoff at. SO, I made a quick WW themed grass texture for you to consider. You can use it as is, or modify it however you want. Of course, the option to not use at all and keep what you have is always an available option, since I am only offering a suggestion.
I can fine tune your kokiri wall, fence, building textures fi you would like. Currently, the grass seems to creep up the rock face too far, and it makes the floor (grass) look painfully artificial, while there is no grass growing on the face of buildings fences, or other verticle surfaces.
Again, you are doing a positively amazing job, so don't take this critique negatively. Just throwing in my 0.02 to encourage this texture pack along.
I would be more than happy to put together more textures if there is anything in particular you would like done.