The flowers are colored magnificently. Their hair is gorgeous. The pose is passionate.
What I enjoyed most is his expression. Those eyes are so wonderfully profound! I see many different things in them that can be interpreted in such a varied range of explanations that I am entranced. I can easily see the desire, but I can also feel he does love her. I feel hesitance. I feel he treasures her. I imagine he's dangerous and fears to hurt her. I sense guilt.
I think this might just be your best work portraying a couple.