- Piercing Damage 15-28 (requires 8 marksmanship)
Damage +15% (while health is above 50%)
Energy regeneration: -1
Energy gain on hit: 1
Armor +5
2. Poisonous Longbow of Marksmanship
- Piercing Damage 15-28 (requires 10 marksmanship)
Damage +15% (while health is above 50%)
Lengthens Poison duration on foes by 33%
Marksmanship +1 (20% chance while using skills)
3. Plagueborn Recurve Bow of Fortitude
- Piercing Damage 15-28 (requires 9 marksmanship)
Energy +5
Health +30
4. Amber Longbow of Defense
- Piercing Damage 15-28 (requires 13 marksmanship)
Damage +15%
Armor -10 (while attacking)
Armor +5
All of them are gold (rare), and the energy +5 on no. 3 is the status, like instead of damage +15% (while health is above 50%), it just gives +5 energy. Just making sure you know there's not an Insightful mod for bows now.
Also, you should know that no. 2 is the ordinary Longbow skin, not the Feathered Longbow, just saying because I can't remember if the Feathered Longbow skin says "Feathered" or not. 
Any help at all is welcome and appreciated!