Painted Soulhunter, the Test Model

I'm currently working on a group of Soulhunters for a tournament in 2 weeks. I'm still trying to be fully painted at all events I go to (that are reasonable, expecting 5 lists is not reasonable). I think the model is 90% done. All the base colors are on, but it is missing something. Devlan Mud has been suggested, but I'm not sure if it goes on the entire model or just the flesh, bone, and muscles. I've also been suggested to use a brown/blue wash on the muscles (red) to make them look bruised. Any other suggestions?