Not a huge effort, I haven't a lot of images that could convey summer unfortunately. too much of a bird brain. :D
I feel this may be a little cool? As in color temp. I added four runs of topaz clean over it, but there aren't many edges, perhaps that's what topaz needs? I deliberately used the shallowest DOF in the original image with my macro lens at f/2.8. So no DOF. Not sure what I think, I just wanna be active in the themes. :)
Akos, I agree with Denise about the dreamlike quality to the image. I don't feel the image is that cool but you might get that more from the backround. If this were mine I would take out the petal on the upper right.