There are so many great elements in the photo. From the color to the movement in the water and also the stillness of the dragonflies.

I agree with yenahmik on the cropping. I’ve done a different cropping solution that keeps the movement in the water and also guides the eye around the photo (compositional/visual flow). I think moving the dragonflies off to the side and utilizing their verticality as a reference to the edge of the frame gives the photo more drama or tension. I also added a little more black and contrast to improve the depth of field.