Social Climbers.

Walking around the gardens looking for props.

I have to admit it is different. As a personal choice I would have swapped the two subjects because of the background tones, to give better separation. Also I would have cropped the top a little to remove the distraction in the upper left hand corner. Next time try a fill flash to kick up the contrast and to give your subjects a catch light in the eyes.

Why do you need a prop? Just pose them standing or sitting together with their arms around each other's backs and stop stepping in the flower beds! On a positive note, their happy expressions look genuine.