I was feeling very good a few weeks ago and decided to rework this asset completely using Quixel Mixer. It was good, interesting & fun. I want to keep doing that with other assets but Quixel is not good that for organic materials yet. To me there is something annoying with the layering/blending part that doesn't help/work. I used 3dsmax to create the ambient occusion map, QM is not doing that by itself yet.

Free (Specular): http://u3d.as/5Ts
2K PBR: http://u3d.as/cvD

Free (Specular): http://u3d.as/5Ts
2K PBR: http://u3d.as/cvD

Free (Specular): http://u3d.as/5Ts
2K PBR: http://u3d.as/cvD

Free (Specular): http://u3d.as/5Ts
2K PBR: http://u3d.as/cvD

Free (Specular): http://u3d.as/5Ts
2K PBR: http://u3d.as/cvD

Free (Specular): http://u3d.as/5Ts
2K PBR: http://u3d.as/cvD