I wrote to those who could, but most of the comics I found in the "google images". After that I do not think that they are mine, I just explain them, so under each comic I add a link to the original.
So you didn't get permission. Then you shouldn't be posting them not every artist is going to take this as a compliment they'll take it as theft. Perhaps you should remove them until you have consent.
Taking things from google isn't legal either it even states when looking at images that they're subjugated to copyright so do not use. So I'd recommend only keeping the ones you actually we're given permission to use and removing the rest. I don't want to make you upset or anyone else but we don't accept thieving in here. So please just remove the ones you either don't know who the artist is or don't have permission to use.