Look for "Heroes in Crisis"

Of course Heroes in Crisis is a Big Event at DC Comics these days, and I'll admit that something kind of nice showed up in the most recent issue that came out a week or two ago. Here, take a look at the double-page splash from pages 2 and 3 of issue 5:

Do you notice the interesting thing in the artwork? Come on, take another look:

I'll
admit
I
did
not
notice
the
interesting
thing
on
my
own;
somebody
on
twitter
made
it
clear
to
me,
so
I'll
do
the
same
for
you:

Fun, right?