the scream

[dukealien]

louvres blow open
thrashed back and forth by the wind
cats claws dig in deep

nice, I'm not sure you need "back and forth", for me it clashed with the movement of L1.

Could the louvres be vertical?  (Or are they then called something else?)

@billy - admire the way absence of an apostrophe in or about "cats" creates ambiguity there.  On third reading, picked up an image of a surface (best left undescribed) clawed in vertical slices.