Visually Distinctive Terrains - Fungal Biome is my favorite look for that biome. I also have to stress Biomes Redux - it's a huge improvement to Lush and Arid biome aesthetics.
Personally the virtues are too bland for me. You might also like Echoes of Earth, a different flavor of rework mod where energy management is tighter. The Codex mod is great, and you only mix it with other mods at your own risk with all the changes and potential compatibility issues.
