Check for Provide an accessible overview (MOS:INTRO): Done
Major Point 1: Plot "The series follows the adventures of Finn ... Thus, the world is righted again." (not a concise summary of the Plot section, must be more clear and concise.)
Major Point 2: Production "The episode was written and ... Cloris Leachman as Farmworld Marceline." (not a concise summary of the Production section, few important points like the music composer Tim Kiefer are not in the lead.)
Major Point 3: Reception ""Jake the Dog" was watched by 3.435 million viewers and received largely positive critical acclaim, with many critics writing that the episode was both humorous and a creative challenge." (not a concise summary of the Reception section)
Check for Relative emphasis: Done
Major Point 1: Plot "The series follows the adventures of Finn ... Thus, the world is righted again." (the lead gives due weight as is given in the body)
Major Point 2: Production "The episode was written and ... Cloris Leachman as Farmworld Marceline." (the lead gives due weight as is given in the body)
Major Point 3: Reception ""Jake the Dog" was watched by 3.435 million viewers and received largely positive critical acclaim, with many critics writing that the episode was both humorous and a creative challenge." (the lead does not give due weight as is given in the body)
Paragraphs should be short enough to be readable, but long enough to develop an idea. (WP:BETTER)
Fix ""Jake the Dog" first aired on Cartoon Network ... "Finn the Human". the episode ... at the time of the airing." in the Reception section. There is also a 1a issue: the should be The.
Check for Standard appendices and footers (MOS:APPENDIX): Done
"inter-dimensional travel" ... [8] (Check on source 8, successful, "Given all the inter-dimensional travel in the episode, ...")
"I threw my own music from the Season 2 finale 'Mortal Folly / Mortal Recoil' on my turntables and went wild – pitching, reversing, rewinding, scratching and more – transforming Jake’s 'Lil’ Booty Dance' bongo song into a booming, merry-go-round dance celebration."[8] (Check on source 8, successful, "... I threw my own music from the Season 2 finale “Mortal Folly / Mortal Recoil" on my turntables and went wild - pitching, reversing, rewinding, scratching and more - transforming Jake’s "Lil’ Booty Dance" bongo song into a booming, merry-go-round dance celebration.")
"a dense première that evokes nearly all aspects of this series."[3] (Check on source 3, successful, "... and the result is a dense première that evokes nearly all aspects of this series.")
"on humor and relationships" ... [3] (Check on source 3, successful, "The Dog is more focused on humor and relationships, ...")
"irreverent silly note[s]" ... [3] (Check on source 3, successful, " Jake says, ending the episode on an irreverent silly note after an intense story.")
"irreverent and narratively engaging".[10] (Check on source 10, successful, "... more clearly represents the progress of the medium: Irreverent and narratively engaging, ...")
"the ideal testament to animation's glorious pliability in an commercial arena otherwise defined by restrictions."[10] (Check on source 10, successful, "... it's the ideal testament to animation's glorious pliability in an commercial arena otherwise defined by restrictions.")
"sad subtext" ... [10] (Check on source 10, successful, "... toys with an incredibly sad subtext: The world has been destroyed in something called The Great Mushroom War.")
"deny the bad vibes their surrounding world invites" ... [10] (Check on source 10, successful, "Through friendship and playtime, the characters seemingly deny the bad vibes their surrounding world invites.")
"cheery songs and vibrant artwork" were some of the series strongest points.[10] (Check on source 10, successful, "The cheery songs and vibrant artwork remain sincere while challenging the backdrop at the same time.")
"interesting creative challenge".[10] (Check on source 10, successful, " provided an interesting creative challenge for Ward and his team: a prolonged running time of half an hour, which basically amounted to a double episode.")
Check for Likely to be challenged: Done
Check for Contentious material about living persons (WP:BLP): NA
Image 1 (ClorisLeachmanJune09.jpg): This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. This version permits free use, including commercial use. Hence this image complies with The license must permit both commercial reuse and derivative works.
Image 2 (M Emmet Walsh at the 2009 Tribeca Film Festival.jpg): This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. This version permits free use, including commercial use. Hence this image complies with The license must permit both commercial reuse and derivative works.
Check for copyright status: Done
Image 1 (ClorisLeachmanJune09.jpg): Free.
Image 2 (M Emmet Walsh at the 2009 Tribeca Film Festival.jpg): Free.
Caption: "The episode guest starred Cloris Leachman (left) and M. Emmet Walsh (right) among others." succinct and informative
As per the above checklist, the issues identified are:
The lead does not provide an accessible overview. Major Points like the Plot, the Production and the Reception are not the concise summaries of their respective sections.
The lead does not give relative emphasis to the Reception as is given in the body.
Paragraphs should be long enough to develop an idea. Fix short paragraphs.