Keith Thompson?
I think this piece is -amazing-, thumbs up to you for your amazing skills!
However, I do have a question/remark: Is this, by any chance, inspired by Keith Thompson? His art is similarly macabre, and the whole, surreal, multi-limped monstrosity seem very much alike to this - that's not to say they are identical. I noticed that your style differs quite a bit from his, but still, they're definitely in the same direction. :)
It reminds me of one of my favorite novels.
In the trilogy "The Night Angel" by Brent Weeks, there are monsters called ferali. The ferali are made of the flesh of many different corpses and have many mouths. Contact with a mouth, or the ferali itself, will allow the monster to consume the victim and add them to its own body. Reforming and shaping itself with its extra mass it may take on many different forms.
Anyway, bottom line, they are badass. While this isn't exactly how I imagined them, it's not too far off.
The -2 is for the dull back ground. The monster itself looks great and grotesque for sure.
Good but...
The background is lacking.
Pretty sure that at one point or another we feared this thing was under our bed.
This one looks creepy and beautiful at the same time. Thank you for the unusual genre.