@willytheraccoon
Your minis are amazing! o___o
About the vine stalker head, I agree that the head should look less humanoid. Why? To make it stand out better from trolls and other races, to give them more character of their own. Judging from your DA site, you like fallout too, do you know spore carriers from New Vegas?
On the other hand, aren't vine stalkers supposed to be some sort of symbiotes/parasites grafted onto/growing from the inside out of a dead(ish) husk of a former humanoid? Maybe when you get to the painting stage, if you can reflect that the humanoid face is being "eaten from the inside" by the plant organism, you can reconcile both approaches. Cracking skin, patches where flesh has fallen off and reveals plant tissue inside... if that face is made to look like it's a vestigial mask from a former humanoid I think it can be kept while not clashing too much with the concept.
In any event, it's you who's making the minis, they're awesome and if people don't like your interpretation, well, they can try their hand at it themselves