You've certainly got plenty of talent but, coming at it from the perspective of someone who's studied the framing of shots in photography, I'd like to see the 'camera position' rather lower, so that the line of trees on the horizon drops to behind the couple's head (i.e. roughly in line with the top of the man's ear) and the woman seems to be looking towards the 'camera'. I'd also turn the 'camera' just a little to the left, so that there's just a bit more of the lake visible alongside the man's shoulder.