Unfortunately I have never seen a Peregrine Falcon close up, that's why I looked at one in a book to draw this effort.
They are the elite among raptors and such skilful flyers
I have seen them high in the sky though. On one occasion I observed one through binoculars flying so high that I couldn't have seen it with the naked eye. It soared around and then suddenly dropped like a stone and went out of sight behind a tall tree line
(The terminal velocity of a Peregrine Falcon falling through the air is 200mph or 90 metres per second - hey I looked it up)