I found a couple of quotes on shadows in The New Beacon Books of Quotations by Women compiled by Rosalie Maggio:
Morning: such long shadows/ Like low bellied cats/ Creep under parked cars/ and out again, stealthily/ Flattening the grasses ~ Rosemary Dobson
Shadows lie late, their long, drowsy limbs/Spread on the grass ~ Babette Deutsch
This post linked to Shadow Shot Sunday. Enjoy the rest of your week end! Take care and God bless!