Ahhhhh. That's niiiiiice. Lighting...

First of all, before the examples, I'd like to point out that lighting effects me the most.  I feel like music could be a close second but our eyes are very in-tune tools when it comes to recognizing expression, body language, and where the lighting comes into play, setting. That "perfect shot" always seems to be lit a very certain way whether it is intentionally bold or subtle.

Starting with natural light (left), this is a great example of the use of magic hour early in the day.  It projects a warm soft feeling as the light reacts with and moves through the early morning moisture in the air. The boat is literally traveling with the light and there is use of "look room" or "leading room" in front, considering the boat is in the right third of the frame.

This (right) is a good example of high contrast lighting skills mixed with of course, a beautiful set of eyes.  I guess it makes a difference when you simply have the right talent to light.  Her key light is strong and there is hardly any, if any, back and fill light.  This is when that beautiful triangle of light is projected on the opposite side of the face and almost capturing the other eye but is left to the mysterious look.  There is also use of an object blocking the light, making the shadowed line across the side of her face with the key light.  This could be a small type of flag or gobo, or it could be as simple as a stick or branch mounted or held between the key light and and subject.