Makeup artist Shonagh Scott reimagined your favourite Disney princesses as victims of tragic events that were inspired by the original story lines. If that sounds creepy, that's because it is, but Halloween is creepy too, so it all kind of makes sense. Got to give it to her though: Her princess transformations are pretty spot-on and the gory makeup is disturbingly believable too.
I think that this is a really good approach to beginning creating a wound for a broken bone as an extreme injury. This is because there are many tones and there is depth in colour to make it look like a deep cut. To develop this and adapt it I would add a few more varieties of tones at the top to create realism.