"Mellow Yellow" is an nice entry into the Burst of Color challenge.
I think your subject is great, I like that are subjects are really lying on the thirds of the frame. I am not sure if the soft focus was intentional or maybe there was a breeze blowing by. I think the movement does give your piece something interesting that draws the viewer in. I wonder if you had just focused on one flowers specifically and let the rest melt into the background it would have scored a little higher.
Overall this is a nice piece the colors are nice, a little soft for a burst of color but I think it works well for this piece. I really look forward to seeing more entries from you, best of luck!
Composition is appealing, natural color okay (try darkening the yellows/greens with contrast adjustment or curves in PS post processing, the lack of focus is going to spoil the voting. 4