Detective Comics #31 Homages

Title: Detective Comics #31	Title: Batman #227
Publisher: DC Comics	Publisher: DC Comics
Cover date: 1939	Cover date: 1970
Artist: Bob Kane	Artist: Neal Adams

Title: Batman: Legends of the Dark Knight #8	Title: Droopy #1
Publisher: DC Comics	Publisher: Dark Horse Comics
Cover date: 1990	Cover date: 1995
Artist: Klaus Janson	Artist: Bill Morrison

Title: Batman: Shadow of the Bat #45	Title: Following Cerebus #3
Publisher: DC Comics	Publisher: Aardvark-Vanaheim
Cover date: 1995	Cover date: 2005
Artist: Brian Stelfreeze	Artist: Dave Sim

Title: Batman and the Mad Monk #1	Title: Robin v2 #176
Publisher: DC Comics	Publisher: DC Comics
Cover date: 2006	Cover date: 2008
Artist: Matt Wagner	Artist: Freddie Williams II

Title: Darkwing Duck #8	Title: The Golden Age of DC Comics 1935-1956
Publisher: Boom! Studios	Publisher: Taschen
Cover date: 2011	Cover date: 2013
Artist: Diego Jourdan	Artist: Bob Kane

Batman: The Killing Joke Homages

Title: Batman: The Killing Joke	Title: Una sonrisa, por favor.
Publisher: DC Comics	Production Company: EMI-Odeon
Cover date: 1988	Release date: 1989
Artist: Brian Bolland	Band: Orquesta Mondragón

Title: Judge Dredd Megazine #211	Title: The Transformers: All Hail Megatron #1
Publisher: Rebellion	Publisher: IDW Publishing
Cover date: 2003	Cover date: 2008
Artist: Frazer Irving	Artist: Casey Coller

Title: Booster Gold v2 #5	Title: Darkwing Duck Annual #1
Publisher: DC Comics	Publisher: Boom! Studios
Cover date: 2008	Cover date: 2011
Artist: Dan Jurgens	Artist: James Silvani

Title: Grimm Fairy Tales presents Wonderland #3
Publisher: Zenescope
Cover date: 2012
Artist: Sean Chen

Adventures in Babysitting Homages

Title: Adventures in Babysitting	Title: Darkwing Duck v2 #17
Production Company: Touchstone Pictures	Publisher: Kaboom!
Release date: 1987	Cover date: 2011
Artist: Drew Struzan	Artist: Sabrina Alberghetti

Title: X-23 v2 #17	Title: Love and Capes: What to expect #2
Publisher: Marvel Comics	Publisher: IDW Publishing
Release date: 2012	Cover date: 2012
Artist: Kalman Andrasofszky	Artist: Thomas F. Zahler

Title: Adventure Time with Fionna & Cake #1
Publisher: Kaboom!
Release date: 2013
Artist: Joe Quinones

The X-23 Homage has been graciously spotted by ContieneSpoilers.

Batman #1 Homages

Title: Batman #1	Title: Icon #31
Publisher: DC Comics	Publisher: Milestone
Cover date: 1940	Cover date: 1995
Artist: Bob Kane	Artist: Howard Chaykin

Title: Big Bang Comics #3 (interior page)	Title: Fanboy #5
Publisher: Image Comics	Publisher: DC Comics
Cover date: 1996	Cover date: 1999
Artist: Jim Valentino	Artist: Sergio Aragonés

Title: Wizard Magazine #208	Title: Darkwing Duck v2 #7
Publisher: Wizard	Publisher: Boom! Studios
Cover date: 2009	Cover date: 2010
Artist: Andy Kubert	Artist: Sabrina Alberghetti

Title: Bantam #1	Title: Batman v2 #27
Publisher: Seventh Avenue Productions	Publisher: DC Comics
Cover date: 2013	Cover date: 2014
Artist: Lupi	Artist:

Homage: Batman #194 / Darkwing Duck v2 #14

Title: Batman #194	Title: Darkwing Duck v2 #14
Publisher: DC Comics	Publisher: Boom! Studios
Cover date: 1967	Cover date: 2011
Artist: Carmine Infantino	Artist: James Silvani

X-Men #101 Homages

Title: X-Men #101	Title: Classic X-Men #9
Publisher: Marvel Comics	Publisher: Marvel Comics
Cover date: 1976	Cover date: 1987
Artist: Dave Cockrum	Artist: Arthur Adams

Title: Avengers West Coast #71	Title: X-Men Adventures Season III #4
Publisher: Marvel Comics	Publisher: Marvel Comics
Cover date: 1991	Cover date: 1995
Artist: Tom Morgan	Artist: John Hebert

Title: The New Avengers v2 #17	Title: Darkwing Duck v2 #18
Publisher: Marvel Comics	Publisher: Boom! Studios
Cover date: 2011	Cover date: 2011
Artist: John Tyler Christopher	Artist: Sabrina Alberghetti