Well, I tried a glaze/filter of P3 Rucksack Tan, and let's just say I am glad I was able to recover. I like the horns better as they are. Nothing much else to show - just got the last few brass metal bits, and based the smokestacks. I was tempted to leave them black because I want a sooty look, but I will accomplish that with pigments after I get them painted up.
Just chains (rust or silver?), tentacles (color ideas?) and bone (nails/spine) to go.