This reminds me a lot of Penny Arcade, I started reading it 10 years ago for the video game commentary but I've really enjoyed watching the quality of the writing and comics improve to such a world class level over time.
This is not uncommon in comics all over the world. There are also a number of mangas exposing this evolution of the artist, two of the most flagrant ones are Kazushi Hagiwara's Bastard!! and Kentaro Miura's Berserk.