The bliss factor for Jake is off the charts in this moment. Not only is he in a convertible Mini with the back seat all to himself but he's with his beloved NICK! and about to go to NICK!'s house where there are two tiny six-pound dogs, who are Jake's people because, though to our eyes he's a very very large 110-pound Labrador, in Jake's mind he's no bigger than a Yorkie. And way nicer.
As for the perpetually gleeful Miss Maisie, you can see the party never stops.