Flowers in potato field

Just a short walk from where I live there is a potato field, one corner of which has become a wild flower meadow. There are so many flowers there that I suspect that there has been some deliberate re-wilding taking place. It is much better than the wild flower meadow I have been trying to establish in the garden. There are lots of poppies obviously, and ox-eye daisies, but I didn't get much further with identification. The yellow flowers look like oil seed rape. The green in the top left corner of the photo is definitely potatoes. The extra is another view looking in the opposite direction to add context to this display. Thanks to Miranda1008 for hosting Wild Flower Week.