This was a collaboration between MJ Whiting, Kirsten England, and I.
MJ Whiting did a first pass and hand placed the blood mask for Ellie's shoulder. She used materials and textures hand painted by me. I did a polish and final pass for the blood mask that spawns for her shoulder when she gets hit by an arrow, and when she pulls the arrow out. Kirsten England added in the blood ribbon that comes out of Ellie's shoulder. I added the small blood squib that comes out along with the ribbon. The blood masks on Ellie are all done by me. The particles, materials, and textures.