When you have found your photograph, spend some time writing out just what you see in it in as much detail as possible: objects, landscape, people, clothes, trees, architecture, light, and shadow. In a sense, you will have to narrate the photograph, or at least create a discernible image so that we can, literally, see what you are talking about. Then, using the same photograph, write a poem from any of the following perspectives or points-of-view:
1. Speak the poem as the photographer.
2. Speak the poem as someone or something in the photograph.
3. Speak the poem as someone or something in the photograph addressing the photographer.
4. Address the poem to someone you know who has not seen the photograph.
5. Address the poem to someone in the photograph.
6. Address the poem to the photographer.
You can also shift the perspective of the poem by manipulating the time, but still using the same photograph:
1. Write what happened just before the photograph was taken.
2. Write what happened just after the photograph was taken.
3. Write what happened as the photograph was being taken just outside the range of the camera.
4. Write the poem as if you have found the photograph years after it was taken.
5. Write the pome as if you were planning to take the photograph.
6. Write the same poem in three versions: present, past, and future tense.
"Any photograph has multiple meanings; indeed, to see something in the form of a photograph is to encounter a potential object of fascination...Photographs, which cannot themselves explain anything, are inexhaustible invitations to deduction, speculation, and fantasy."
This poem is from the book The Practice of Poetry by Behn and Twichell