This is a combination of two different bouquets of daffodils. You can tell the difference between the two from the colors … but it’s not easy to see in this image. This is a focus stack of about 5 images.
I had an overhead light on and the background was two sheets of the same color mat board that I had laying around. I was amazed at how different the color showed up from the direction of the light. The distant background was lit more by the light through my north-facing sliding glass door. I also played around with the color of the background… the mat board is a medium brown. I used the subject mask option in LIghtroom to avoid changing the color of the daffodils.