i kinda use a mix of various textures from two different gfx packs.
best thing you can do for easy install is using the realistic colors mod:
http://www.mbrepository.com/file.php?id=2018but only use the textures of that one (except you want taller grass)
that will change alot. i just used it on my root folder texture file so not in any modules folder.
then i use this:
http://www.mbrepository.com/file.php?id=2387for the map boarders. makes the maps look huge
i also use some textures from the graphic packs but those are not visible in the screenshot i think
basically it's better snow and sand
at some point i might create a pack with all my settings and upload it somewhere (credits included).