basically it's like joannekwan said, you can either use it (1) as a reference or (2) as a combined work that contains models but not as a stand-alone, but this probably only works for sketchupPro so (3) adding or altering enough details may be the safest option
though, sometime ago there was a creator in my country that used mugenjohncel's 3dmodel in a webtoon called Trickster and credited it at the end of the episode and I don't think the creator ever got into any trouble? but this is probably not the best example (i tried this before for my short story as well but my comic is a free project)