I doubt at this point anyone's interested in another suggestion, but I was desperately trying to remember the title of this poem yesterday and I couldn't, so here it is today, anyway. It's very long, so I won't quote the entire thing, but there are so many great parts this is bound to be a huge space-taker of a post.
"The Old Vicarage, Grantchester" (Rupert Brooke) has a lot of really great imagery that I think would do well as a shirt.
http://www.bartleby.com/232/701.html
"JUST now the lilac is in bloom,
All before my little room;
And in my flower-beds, I think,
Smile the carnation and the pink;
And down the borders, well I know,
The poppy and the pansy blow…
Oh! there the chestnuts, summer through,
Beside the river make for you
A tunnel of green gloom, and sleep
Deeply above; and green and deep
The stream mysterious glides beneath,
Green as a dream and deep as death.
—Oh, damn! I know it! and I know
How the May fields all golden show,
And when the day is young and sweet,
Gild gloriously the bare feet
That run to bathe…
Du lieber Gott!"
"… would I were
In Grantchester, in Grantchester!—
Some, it may be, can get in touch
With Nature there, or Earth, or such.
And clever modern men have seen
A Faun a-peeping through the green,
And felt the Classics were not dead,
To glimpse a Naiad’s reedy head,
Or hear the Goat-foot piping low:…
But these are things I do not know.
I only know that you may lie
Day long and watch the Cambridge sky,
And, flower-lulled in sleepy grass,
Hear the cool lapse of hours pass,
Until the centuries blend and blur
In Grantchester, in Grantchester.…"
"And in that garden, black and white,
Creep whispers through the grass all night;
And spectral dance, before the dawn,
A hundred Vicars down the lawn;
Curates, long dust, will come and go
On lissom, clerical, printless toe;
And oft between the boughs is seen
The sly shade of a Rural Dean…
Till, at a shiver in the skies,
Vanishing with Satanic cries,
The prim ecclesiastic rout
Leaves but a startled sleeper-out,
Grey heavens, the first bird’s drowsy calls,
The falling house that never falls."