Also, to be a real comic cover, does it need that rectangle in the upper left corner that has the date, year, publisher and Issue #? Just asking...

I’d say no on that, it’s certainly not a requirement. In my observation, most modern comics, particularly independent and non super hero genre have strayed away from it. The “corner box” really brings a more retro mainstream feel to me.

Not sure on the SteemPress question. I really wish communities were somewhat tag based, so you could publish the same post across multiple communities via tag. Maybe someday!

And the art looks good! This sounds like a fun premise that you could write really well.