What is the meaning of "He's in the ticket" in the following pictures?
My guess is that it refers to the collection of candidates (see here). This would refer that 'he' is a candidate in the election, which is voted by ballot, or ticket.
It's a typo of thicket.
Compare this summary of the story Bambi:
A doe gives birth to a fawn in the thicket whom she names Bambi.
Surely the page in the comic book/graphic novel refers to the birth of Bambi. When a mother gives birth to a baby it's idiomatic to say 'the baby has arrived'.
The same source uses thicket two other times. From the same source it's clear that the thicket remained the place where Bambi lived:
When Bambi arrives at their thicket, he discovers his mother is no longer with him. He wanders the forest calling for her, but she doesn't answer.
You can also find, all over the internet, references to thicket in relation to Bambi, including the title of blogs and quotes from the movie.