Original post:
http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/2524489-realistic-terrain-generation-rtg-realistic-biomes?comment=3246

Mod:
http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/2306721-advanced-lightsabers-over-3-5-trillion-unique

Screenshots of what they should look like (Plains and Desert biomes only, I think):

1.7.10
No releases, nor has the repo been touched, since May.
Most people using this mod are likely using it in specialised modpack which probably doesn't include RTG.
This type of world gen is not RTG's responsability.