FYI, Canvas' scars were conceived of 4-15-00.  Because the very body types differ, I wanted to try sketching (decent) nudes of the main characters, but this is the only one I think worked, although incomplete.  It's still one of my favorite pictures of Canvas, and now I'm constantly copying that one arm without meaning to.  Granted, later on Canvas' build became straighter and blockier, but the proportion should still be right.