through
Georgia O'Keefe's skull
the desert

Comment by Fay Aoyagi:
The last line is too close to the rest.   

Georgia O'Keefe's skull

I miss the warmth

of my old cat

Well...   I know this is not what you intend to write.    I tried to come up with a feeling of 'desert' or its withered feeling...   :<
****

My revisions:

through
          Georgia
                     O'Keefe's
                                   skull
                                          infinity...
****

Georgia O'Keefe's skull
staring up
at vapour trails