You can only go so far with telling a woman is 'cute' & 'pretty'. Those compliments pass by her on the daily & progressively loses value to her. You can definitely find alternatives to express her beauty. They seek more than just the surface appreciation of their outward appearance. I suggest you dig deeper to capture her true beauty. Take some time to learn about her, from the biggest to the smallest of details. Then, you come back and let her know what you've discovered.