Below are free-to-use, free-to-edit, and free-to-manipulate textures and resource packs. You can combine them together, edit the textures, or even use it as a base for further editing. Some packs such as the Cherry Blossom Wood are under construction but available to download as a barebones pack.
Cherry Blossom Wood (replaces Acacia)Click here to download - Download the entire folder, unzip it, and put into your resource pack folder in minecraft.
The following things are not affected - Boat, Sign, Leaves. Leaves seem to be very difficult to get working so for right now it is delayed in being made.