These have A LOT of overlap and seem redundant to me.
Suggestion:.
Modify these for a specific focus;
Piety (Divine) = With a Perception roll, sense divine, infernal, or neutral planar illusions, sources, and invisible entities. Determines "aspect" (Divine, Neutral, or Infernal). Detect magical traps created by planar magic. Sense the presence of undead or opposing supernatural entities including mana using entities of opposing forces.
Second Sight (Nature) = With a Perception Roll, sense nature-based supernatural illusions, sources, and invisible entities. Detect magical traps created by nature-based or fey entities. Sense the presence of nature spirits, fey, and supernatural nature-aspected creatures and mana using entities.
Sixth Sense (Spiritual) = With a Perception Roll, sense spiritual-based illusions, sources, and entities. Detect magical traps made by spiritual beings or entities. Sense the presence of spirits, ghosts, shapechangers, and spirit-based mana using entities.
This would differentiate them (IMHO).