When Keats looks at the painted figures and trees on the Grecian urn (in Ode on a Grecian Urn), he is not just happy that these apparitions will never fade, because they are art, and thus permanent; he is happy that they have never had to live, that they are not  Ah, happy, happy boughs!
In its Ode on a Grecian Urn, Keats looks at the painted objects with happiness because they never came to life and will be permanent, as art figures.
In its Ode on a Grecian Urn, Keats looks at the painted objects with happiness because his lover painted them.
An older gray-haired gentleman doesn't stand out on a concrete pier
A child is preparing a meal.
The boat is actually a jetski
There are three men passing by a poster in the street.
A young man at home watching a movie
I was having a conversation with someone before this.