i personally think its OK to use something that is pretty established and out there, and incorporating it into your shit, because it is apparent that it is a 'bite'.Like Mone said, niggas use Bode chars etc. By the same token Tesk 'bit' the galactus character on the same page and was not called out?
it's wrong when it's something unknown to most and therefore it's like your claiming that it is your shit cuz no one knows about it.
here's an example of me doing it wrong a while back and doing marvel chars out of my ass.
and heres me using a reference.