@yego Hi! Looks awesome to me. I would add a little blur to the Plants in the background and take the saturation down a little on that plants too.
Though the colors are complementary and great, the two subjects can be integrated better on the scene if you add some color grading to them. For example:
-Make a stamp visible from the background without the subjects
-Filter, Blur, Average (now you have a layer filled with the average background color)
-Set this layer to color blending mode and take down the opacity as much as you feel. If you don't want the color to touch your highlights open the Layer Style panel and take down a little the white "blend if" slider.
That is an easy way to integrate the subjects in the scene.
those are the things I would do. but is a great piece the way is now anyway. Congratulations!!! You have an interesting way of using light, are you a photographer?