ok, detective shadow investigates....
EDIT:
after taking a look at the flesh creature model, i see no licensing (brief look though) i suggest two courses of action:
NO.1: release the model, making sure you DO NOT claim it as your own.
NO.2:wait, and contact the author to get his permission (probably best to do this)
NO.3: don't release it at all.
please bear in mind that if you choose to take one of these ways i am in no way responsible for anything that may happen. i am suggesting. and i strongly advise you to contact the author.
Can you solve the mystery of bunker 413?