Getting Into the Frame

KPS themed challenge.  Subject 3:- FRAMED.

So here we have some seagulls breaking into the frame.

The frame was created by applying the polar coordinates filter to an image of a lookout turret on the boundary wall of Ravenscraig Castle / Ravenscraig Park.  I set 'circle depth' to 0%.

It really needs a bit more work to make it competition standard but I have no more time just now.