They are remakes and not that it is not said , so actually it depends what you use it for
and also where your location is , depending on countries there is a difference in usage.
in some countries it is allowed to make Batman comics in others not !
it is why I have them under Fan Art .
Ok I do it also even if it is an own design as most has been Invented anyway
if you make a mouse 3d and your ears have to much resemblance with Mikey well then ...
So Seriously .. Art is always a Walking on a edge no matter what you will do
you have to estimate what you can use and on how much your location will allow.
as far as I know in the US it is enough to have a difference of 5% then it is ok.
else even a collage would be a reason to be sued ! so you just need a Part of it
as own creativity
Imagine what would happen with DA if fan Art would be that bad
Meshes are High resolution not just a Low mesh, and thank you for the Cheer Up
wishing you also a Merry Christmas