London Pavement Artist (contest entry)

Finally here's my entry for Xiakeyra's Illustrate a poem contest, below is the poem I used, I really didn't do it much justice. *walks away in shame*

London Pavement Artist
by James Schevill
His place is before, not in, the National Gallery,
On the sidewalk, down on hands and knees,
Grey hair a massive flag of identity,
Hands like hooks grappling with stone,
Savage beard a porcupine defense
Against the jeers of passerby,
Draw to eat. Simple motivation,
But what eats him is the pavement,
Devoring his images of chalk,
That rain-washed, fog-lost,wind whipped cement
On which he draws flowers and faces,
Simple subjects to elicit simple coins,
Penny and ha'penny thudding his cap.
Is it art? Stupid question.
The images of chalk fade in the rain...
Art is the pavement that eats you.