Aww no its not your fault, artworks in my opinion are for free interpretations. Also I think its great how you are sharing your opinions and that allow others to see the emotions communicated through the artwork in your opinion. Yeah I wonder too, but I like it most of all when artists allow viewers to share their different opinions.
Makes me feel her sadness and how she is even too sad to be aware of the fact that she is freezing down to the bone - I don't know of course what you felt and what inspired you...but this is what the picture tells me desperate for a - very striking and convincing expression of what she must be going through. Excellent work