Well exposed and good detail, however, it looks like it was taken in harsh midday sun. Some softer side light earlier or later in the day may have been more pleasing.
The flowers overlapping make the shot more interesting. With the background blurred it keeps you focusing on the flowers and you arent distracted from them.
Very nice. Beautiful composition. I dont know, we dont have daffodils in my locale, so i can't really say how much yellow would satisfy me, but i would have loved this photo even more if you had boosted the saturation one notch higher. Still a 9 to me.