Kodachrome and red, can't go wrong. This eye-popping poppy almost fluoresces. The smaller, because in the background, flowers seem to be attending the queen. The pod stalk on the right is very elegant. Interesting image.
Like the subject and colors. Something about the composition feels off-balance to me. Kind of want the background flower right above the main flower and the spent flower stem gone. It leaves a stronger diagonal to the composition. Could be personal preference :-)