Interesting, but looks like there’s quite a lot of work still to be done. The body proportions dont look right to my eye. Not saying that realistic styles are any better than exaggerated ones, it’s that you have a wierd mix of cartoony in some spots and realistic details in others, and for a morbid image like this, it isnt quite working.
i.e. from the shoulders up, it looks like a muscular male frame, but below, it becomes very skinny and stretched, as well as looking sheared off to the left.
The hand is also looking very very odd, with fingers that taper too much and arent at the right lengths.
As for the concept itself… it looks odd, but not implausible. Not so sure about the skin chunking off into edges like that, but the parasite idea is definitely worth carrying on with. It reminded me of a snail parasite that infests its victim and stetches the skin so thinly that it can be seen through it. Maybe you can take that idea and run with it.
Here’s the snail parasite link with pics.
http://people.smu.edu/eheise/Leucochloridium_paradoxum.htm