That art is too reptilian for me, personally - it takes the pred from "humanoid extraterrestrial" to "monster" in my opinion. Then again, I like Scar's face, and I know I'm in the minority on that here!
Anyway, I think my favorite pred design is Wolf. I like his equipment - the one-shoulder pauldron, the bandolier - his coloring, and his lean musculature. Though I also really like Scar's expressive eyes and long dreads.